Transfusion and Apheresis Science

Article	Citations
Clinical efficacy of convalescent plasma for treatment of COVID-19 infections: Results of a multicenter clinical study	140
Treatment for emerging viruses: Convalescent plasma and COVID-19	110
Anemia is associated with severe coronavirus disease 2019 (COVID-19) infection	64
Management of blood supply and demand during the COVID-19 pandemic in King Abdullah Hospital, Bisha, Saudi Arabia	62
Inventory management in blood supply chain considering fuzzy supply/demand uncertainties and lateral transshipment	52
Prolonged viral shedding in a lymphoma patient with COVID-19 infection receiving convalescent plasma	48
Life-saving effect of convalescent plasma treatment in covid-19 disease: Clinical trial from eastern Anatolia	38
First case of convalescent plasma transfusion in a child with COVID-19-associated severe aplastic anemia	35
Relapse of thrombotic thrombocytopenic purpura after COVID-19 vaccine	34
Potential challenges faced by blood bank services during COVID-19 pandemic and their mitigative measures: The Indian scenario	34
COVID-19 and the ABO blood group connection	34
CRISPR/Cas9 gene editing for curing sickle cell disease	33
Convalescent (immune) plasma treatment in a myelodysplastic COVID-19 patient with disseminated tuberculosis	33
Patient blood management: The best approach to transfusion medicine risk management	33
Potential of therapeutic plasmapheresis in treatment of COVID-19 patients: Immunopathogenesis and coagulopathy	31
Successful treatment of a centenarian with coronavirus disease 2019 (COVID-19) using convalescent plasma	30
Convalescent plasma, an apheresis research project targeting and motivating the fully recovered COVID 19 patients: A rousing message of clinical benefit to both donors and recipients alike	30
Convalescent plasma therapy in patients with COVID-19	30
Systematic review and meta-analysis of the susceptibility of ABO blood group to COVID-19 infection	28
Covid-19, induced activation of hemostasis, and immune reactions: Can an auto-immune reaction contribute to the delayed severe complications observed in some patients?	27
SARS-CoV-2 serology and virology trends in donors and recipients of convalescent plasma	25
Promoting access to COVID-19 convalescent plasma in low- and middle-income countries	24
SARS-CoV-2 convalescent plasma therapy in pediatric patient after hematopoietic stem cell transplantation	24
Seroprevalence of SARS-CoV-2 antibodies among healthy blood donors in Karachi, Pakistan	22
The true historical origin of convalescent plasma therapy	22

Convalescent plasma therapy for severe Covid-19 in patients with hematological malignancies	21
Two patients with rituximab associated low gammaglobulin levels and relapsed covid-19 infections treated with convalescent plasma	18
Feasibility of leukapheresis for CAR T-cell production in heavily pre-treated pediatric patients	17
Blood shortages and changes to massive transfusion protocols: Survey of hospital practices during the COVID-19 pandemic	17
No transmission of SARS-CoV-2 in a patient undergoing allogeneic hematopoietic cell transplantation from a matched-related donor with unknown COVID-19	17
Symmetrical peripheral gangrene in critical illness	16
Role of therapeutic plasma exchange in the management of COVID-19-induced cytokine storm syndrome	16
The use of convalescent plasma for pediatric patients with SARS-CoV-2: A systematic literature review	16
Umbilical cord blood: Current uses for transfusion and regenerative medicine	16
Therapeutic plasma exchange (TPE) as a plausible rescue therapy in severe vaccine-induced immune thrombotic thrombocytopenia	15
Current treatment approaches for COVID-19 and the clinical value of transfusion-related technologies	14
Position paper on the preparation of immune plasma to be used in the treatment of patients with COVID-19	14
Three non-classical mechanisms for anemic disease of the fetus and newborn, based on maternal anti-Kell, anti-Ge3, anti-M, and anti-Jra cases	13
Convalescent plasma to aid in recovery of COVID-19 pneumonia in a child with acute lymphoblastic leukemia	13
RhIg for the prevention Rh immunization and IVIg for the treatment of affected neonates	13
Convalescent plasma therapy in patients with COVID-19	13
Dwindling blood reserves: An ominous downside of COVID-19 pandemic	13
Successful management of three patients with autoimmune thrombotic thrombocytopenic purpura with paradigm-changing therapy: Caplacizumab, steroids, plasma exchange, rituximab, and intravenous immunogl	13
Therapeutic plasma exchange in the pediatric intensive care unit: A single-center 5-Year experience	13
Therapeutic plasma exchange: A potential management strategy for critically ill MIS-C patients in the pediatric intensive care unit	12
Patient blood management implementation in light of new Italian laws on patient's safety	12
Wound healing effect of autologous fibrin glue and polyglycolic acid sheets in a rat back skin defect model	12
COVID-19 neutralizing antibody-based therapies in humoral immune deficiencies: A narrative review	12
Emerging insights into the role of albumin with plasma exchange in Alzheimer’s disease management	12
Reduced deformability of stored red blood cells is associated with generation of extracellular vesicles	12
Extracorporeal blood purification treatment options for COVID-19: The role of immunoadsorption	12
Unit-to-unit variability in the deformability of red blood cells	12
The frequent and the unusual red cell phenotypes in Indian blood donors: A quest for rare donors	11
Comparison of allogenic stem cell transplantations performed with frozen or fresh stem cell products with regard to GVHD and mortality	11
Convalescent plasma from COVID 19 patients enhances intensive care unit survival rate. A preliminary report	11
COVID-19: Further evidence of no transfusion transmission	11
The role of therapeutic plasmapheresis in patients with hyperthyroidism	11
Is the Italian consent to transfusion really informed? A medico-legal analysis between old ghosts and new evidence	11
Analysis of blood donors’ characteristics and deferrals related to COVID-19 in Iran	11
Role of the AB0 blood group in COVID-19 infection and complications: A population-based study	11
A consideration of convalescent plasma and plasma derivatives in the care of Severely-ill patients with COVID-19	10
Leukoreduction makes a difference: A pair proteomics study of extracellular vesicles in red blood cell units	10
SARS-CoV-2 antibody changes in patients receiving COVID-19 convalescent plasma from normal and vaccinated donors	10
Immunohematologic aspects of alloimmunization and alloantibody detection: A focus on pregnancy and hemolytic disease of the fetus and newborn	10
Non-invasive prenatal testing for management of haemolytic disease of the fetus and newborn induced by maternal alloimmunisation	10
NEW HORIZONS ON STEM CELL CRYOPRESERVATION THROUGH THE ARTIFICIAL EYES OF CD 34+, USING MODERN FLOW CYTOMETRY TOOLS	10
Cellular therapy for the treatment of solid tumors	10
People with blood disorders can be more vulnerable during COVID-19 pandemic: A hypothesis paper	9
Artificial intelligence meets hematology	9
Emergency Supply Policy of Cryopreserved RBC and PLT: The Czech Republic Concept	9
Organization of the outdoor blood donation drives amid novel coronavirus pandemic and national lockdown: An experience from a tertiary care oncology institution in India	9
A look-back at convalescent plasma to treat COVID-19	9
Effects of cell concentration, time of fresh storage, and cryopreservation on peripheral blood stem cells	9
Autoimmune complications of COVID-19 and potential consequences for long-lasting disease syndromes	9
The effect of therapeutic plasma exchange on management of HELLP Syndrome: The report of 47 patients	9

Lessons learned from the use of convalescent plasma for the treatment of COVID-19 and specific considerations for immunocompromised patients	9
Knowledge, attitude and practice of blood donation and the role of religious beliefs among health sciences undergraduate students	9
Passive immunotherapy with convalescent plasma against COVID-19? What about the evidence base and clinical trials?	9
Understanding the demand for phenotyped red blood cell units and requests to perform molecular red blood cell typing for Australian patients	9
Peripheral Blood Stem Cell Mobilization and Collection in Pediatric Healthy Sibling Donors Weighing 20 Kilograms or Less; Algerian Experience	9
Anti-SARS-CoV-2 hyperimmune plasma workflow	8
Addition of plerixafor to G-CSF in poor mobilizing healthy related donors overcame mobilization failure: An observational case series on behalf of the Grupo Español de Trasplante Hematopoyético (GETH)	8
Incidence and risk factors for hepatic sinusoidal obstruction syndrome after allogeneic hematopoietic stem cell transplantation: A retrospective multicenter study of Turkish hematology research and ed	8
Inherited coagulation disorders in Turkish children: A retrospective, single-center cohort study	8
Optimal timing of apheresis for the efficient mobilization of peripheral blood progenitor cells recruited by high-dose granulocyte colony-stimulating factor in healthy donors	8
Baseline haemoglobin and thromboelastometry are predictive of red blood cell requirements and one-year mortality in liver transplantation	8
Non-fungible tokens: Stem cell transplantation in the blockchain	8
In vitro platelet production for transfusion purposes: Where are we now?	8
Effect of Cord Blood Platelet Gel on wound healing capacity of human Mesenchymal Stromal Cells	8
Is pathogen reduction an acceptable alternative to irradiation for risk mitigation of transfusion-associated graft versus host disease?	8
Motivators, barriers and communication channels for blood donation in relation to students at a university in Spain	8
Optimizing pediatric peripheral blood stem cell collection	8
Mesenchymal stromal cells: Getting ready for clinical primetime	8
Assessment of serum iron stores in regular plateletpheresis donors	8
Preparation of packed red blood cell units in the blood bank: Alteration in red blood cell deformability	8
Sickle cell disease in the new era: advances in drug treatment	7
Spotlight on animal models of acute traumatic coagulopathy: an update	7
Seroprevalence of SARS-Coronavirus 2 among asymptomatic healthy blood donors from healthcare and non-healthcare settings: Implications for safety of blood donors and blood collection staff during bloo	7
The successful management of an elderly Covid-19 infected patient by plasmapheresis	7
Awareness about Coronavirus (COVID-19) and challenges for blood services among potential blood donors	7
Platelet and extracellular vesicles in COVID-19 infection and its vaccines	7
Plasma exchange followed by convalescent plasma transfusion in COVID-19 patients	7
Characteristics and causes of pre-donation deferrals at a Chinese blood center	7
Therapeutic plasma exchange in critically ill children: experience of the pediatric intensive care unit of two centers in Chile	7
A comparison of chemo-free strategy with G-CSF plus plerixafor on demand versus intermediate-dose cyclophosphamide and G-CSF as PBSC mobilization in newly diagnosed multiple myeloma patients: An Itali	7
Immunotherapy for COVID-19: Evolving treatment of viral infection and associated adverse immunological reactions	7
Preoperative plasmapheresis experience in Graves’ disease patients with anti-thyroid drug-induced hepatotoxicity	7
Apoptosis as an underlying mechanism in lymphocytes induced by riboflavin and ultraviolet light	7
N-acetylcysteine reduce the stress induced by cold storage of platelets: A potential way to extend shelf life of platelets	7
A serological investigation and genotyping of Toxoplasma gondii among Iranian blood donors indicates threat to health of blood recipients	7
Cargo-laden erythrocyte ghosts target liver mediated by macrophages	7
Mini-review on the properties and possible applications of therapeutic oxygen carrier Hemarina-M101	7
Midline catheter as effective device in healthy allogeneic donors and patients without an adequate peripheral venous access for HPC collection by apheresis: Preliminary experience at IEO	6
Fetal and neonatal allo-immune response	6
Patient blood management and blood conservation – Complimentary concepts and solutions for blood establishments and clinical services in South Africa and beyond	6
Sero-prevalence of SARS-CoV-2 antibodies in blood donors during the third wave of infection in Norway, winter/spring 2021	6
Role of therapeutic plasma exchanges in systemic vasculitis	6
Challenges in platelet inventory management at a tertiary care oncology center during the novel coronavirus disease (COVID-19) pandemic lockdown in India	6
Analysis of ABO grouping discrepancies among patients from a tertiary hospital in Korea	6
Gene therapy for hemoglobinopathies	6
The impact of blood campaigns using mobile blood collection drives on blood supply management during the COVID-19 pandemic	6
Acquired hemophilia A following COVID-19 vaccination – The importance of prompt diagnosis: A case report	6
Early high-titer convalescent plasma therapy in patients with moderate and severe COVID-19	6
Complete neurological recovery from fat embolism syndrome in sickle cell disease after sequential red cell exchange transfusion and therapeutic plasma exchange	6
Clinical and molecular characterization of Iranian patients with congenital fibrinogen disorders	6
Renal function and the oxidative status among children with thalassemia major and healthy controls: A cross-sectional study	6
An update on COVID-19 infection control measures, plasma-based therapeutics, corticosteroid pharmacotherapy and vaccine research	6
Intravenous Immunoglobulin and Favipiravir treatment for A Kidney Transplant Patient with Severe Covid-19 Pneumonia	6
Emerging use of machine learning and advanced technologies to assess red cell quality	6
Blood donor deferral periods after COVID-19 vaccination	6
Effectiveness of supplemental oral calcium drink in preventing citrate-related adverse effects in peripheral blood progenitor cell collection	6
Therapeutic plasma exchange and continuous renal replacement therapy in pediatric dengue-associated acute liver failure: A case series from Vietnam	6
The association of ABO blood group with the asymptomatic COVID-19 cases in India	6
An introductory commentary on the use of artificial intelligence, machine learning and TQM, as novel computational tools in big data patterns or procedural analysis, in transfusion medicine	6
Blood donation and heavy metal poisoning in developing nations: Any link?	6
The HLA-DRB1*11 group-specific allele is a predictor for alloantibody production in the transfusion-dependent thalassemia patients	6
Attenuation of age-elevated blood factors by repositioning plasmapheresis: A novel perspective and approach	6
ROTEM in the setting of liver transplant surgery reduces frozen plasma transfusion	6
Comparison of low fixed dose versus standard-dose rituximab to treat thrombotic thrombocytopenic purpura in the acute phase and preemptively during remission	6
Characterization of circulating and cultured Tfh-like cells in sickle cell disease in relation to red blood cell alloimmunization status	5
Platelet-rich plasma for the treatment of burn wounds: A meta-analysis of randomized controlled trials	5
Platelet supernatant with longer storage inhibits tumor cell growth	5
Hepatitis-associated aplastic anemia in pediatric patients: single center experience	5
RHD genotyping is recommended for all patients with serological weak-D phenotypes in Asian populations – Cases with coexistence of weak-D and Asia type DEL alleles results in complete expression of D-	5
Q fever as a rare cause of hemophagocytic lymphohistiocytosis: Case report	5
Preparedness and activities of the anti-SARS-CoV-2 convalescent plasma bank in the Veneto region (Italy): An organizational model for future emergencies	5
Erythrocyte Alloimmunity and Genetic Variance: Results from the Collaborative Study of Alloimmunity to Antigen Diversity in Asian Populations (All ADP)	5
Comparative evaluation of ADVIA Centaur® XP chemiluminescence system for screening of HBV, HCV, HIV and syphilis in Indian blood donors	5
Novel autologous, high concentrated fibrin as advanced hemostatic agent for coronary surgery	5
Transfusion reactions: A retrospective analysis of the Iranian national haemovigilance system (INHS) data	5
Double filtration plasmapheresis – 10-year pediatric experience as an alternative to plasma exchange	5
Transfusion practices during the COVID-19 pandemic: An experience from a hematology daycare in India	5
Usefulness of hematopoietic progenitor cell monitoring to predict autologous peripheral blood stem cell harvest timing: A single-center retrospective study	5
Remodelling whole blood processing through automation and pathogen reduction technology at the Luxembourg Red Cross	5
The importance of microbiota in hematology	5

Plasma exchange and thrombotic microangiopathies: From pathophysiology to clinical practice	5
SARS-CoV-2 and cancer: the intriguing and informative cross-talk	5
Convalescent plasma as a treatment modality for coronavirus disease 2019 in Sudan	5
Analysis of extracorporeal photopheresis within the frame of the WAA register	5
Transfusion outcome for volume- and plasma-reduced platelet concentrates for pediatric patients	5
Taking therapeutic apheresis services to patients in South Africa: An eight year review of SANBS mobile therapeutic apheresis service, 2013–2020	5
Convalescent plasma therapy in B-cell-depleted and B-cell sufficient patients with life-threatening COVID-19 – A case series	5
Transient elastography of liver: Could it be a guide for diagnosis and management strategy in hepatic veno-occlusive disease (sinusoidal obstruction syndrome)?	5
Metabolomics comparison of cord and peripheral blood-derived serum eye drops for the treatment of dry eye disease	5
Classification of major and minor blood group antigens in the Kuwaiti Arab population	5
How do I see the production of engineered blood cells available for transfusion?	5
“Dual-gene” malaria-resistance: Therapeutically-rational exchange (T-REX) of group-O sickle trait and group-O C-traittrait red blood cells can be evaluated in Benin and Nigeria	5
Iatrogenic anaemia and transfusion thresholds in ICU patients with COVID-19 disease at a tertiary care hospital	5
Analyses of registry data of patients with anti-GBM and antineutrophil cytoplasmatic antibody-associated (ANCA) vasculitis treated with or without therapeutic apheresis	5
Labile iron, ROS, and cell death are prominently induced by haemin, but not by non-transferrin-bound iron	4
Platelet number and function alterations in preclinical models of sterile inflammation and sepsis patients: implications in the pathophysiology and treatment of inflammation	4
Acquired methemoglobinemia: A systematic review of reported cases	4
Secondary alloanti-D immunization post transfusion of “Asia type” DEL red blood cells	4
Transfusion transmitted babesiosis: A systematic review of reported cases	4
Donor safety in an individualized plasmapheresis program – Results of an interim analysis	4
Complete ADAMTS13 remission in a patient with refractory autoimmune-mediated thrombotic thrombocytopenic purpura after infliximab	4
The demographic and serological characteristics of COVID-19 convalescent plasma donors: Identification of basic criteria for optimal donor selection	4
Successful autologous peripheral blood stem cell collection using large volume leukapheresis in patients with very low or undetectable peripheral blood CD34+ progenitor cells	4
Changes in blood donation and utilization secondary to Covid-19 outbreak	4
Neonatal exchange transfusion: Experience in Korea	4
Seroprevalence of SARS-CoV-2 antibodies in blood donors during the third wave of infection in Campeche Mexico	4
Is it necessary to add the eluate testing to the direct antiglobulin test to improve the detection of maternal erythrocyte alloantibodies?	4
COVID-19 antibody donation using immunoadsorption: Report of two cases	4
Thrombin Generation in a patient with Triple Positive Antiphospholipid Syndrome Treated with Three Different Anticoagulants	4
Early therapeutic plasma exchange may improve treatment outcomes in severe acute toxic Hepatitis	4
Bone marrow CD34 positive cells may be suitable for collection after death	4
SARS CoV 2 infection in chronic myelogenous leukemia: Severe hematological presentation	4
Engraftment after autologous hematopoietic stem cell transplantation in patients mobilized with Plerixafor: A retrospective, multicenter study of a large series of patients	4
Documentation errors in transfusion chain: Challenges and interventions	4
Thrombocytopenia due to rivaroxaban: A rare adverse effect	4
Molecular identification of the emerging Human Gemykibivirus-2 (HuGkV-2) among Brazilian blood donors	4
Effects of ultrasound guided leukocyte-rich platelet-rich plasma (LR-PRP) injection in patients with pes anserinus tendinobursitis	4
Examining participant representation by sex, race, ethnicity and age in United States blood donation and blood transfusion clinical trials	4
Can plasma exchange therapy be an option for the treatment of SARS-CoV-2 Related Splenial Lesion Syndrome: Two cases from the pediatric intensive care unit	4
Inferior prognosis in poor mobilizing myeloma patients	4
Investigating the production of platelet lysate obtained from low volume Cord Blood Units: Focus on growth factor content and regenerative potential	4
Extracorporeal photopheresis in steroid-refractory chronic graft-versus-host disease: A retrospective multicenter study	4
Whole blood derived covid convalescent plasma: A practical experience from India	4
Impact of COVID-19 pandemic in the activity of a Therapeutic Apheresis unit in Italy	4
Use of granulocyte transfusion in early period in life-threatening infections of pediatric hematology and oncology patients: A single-center experience	4
Plerixafor strategies for autologous hematopoietic cell transplant mobilization: A comparison of efficacy and cost	4
The rhesus incompatible pregnancy and its consequences for affected fetuses and neonates	4
COVID-19-associated Evans syndrome: A case report and review of the literature	4
Blood transfusion trends by disease category in the United States, 2000 to 2014	4
An Overview of Current Position on Cell Therapy in Transfusion Science and Medicine: From Fictional Promises to Factual and Perspectives from Red Cell Substitution to Stem Cell Therapy	4
Blood supply management during the Covid-19 pandemic: Experience in a tertiary referral hospital in Malaysia	4
Plasma supply in the United States	4
Genotyping of blood groups in alloimmunized patients with β-thalassemia major by T-ARMS-PCR and multiplex-aso-pcr	4
Transfusion Camp: Successes and challenges in scaling and expanding a transfusion medicine education program	4
SARS-CoV-2 variants inactivation of plasma units using a riboflavin and ultraviolet light-based photochemical treatment	4
Hemolytic anemia and plasma exchange	4
Plasmapheresis in ABO incompatible kidney transplant	3
Hepcidin as a diagnostic marker of iron deficiency in blood donors	3
Plerixafor combined with G-CSF for stem cell mobilization in children qualified for autologous transplantation- single center experience	3
The effect of a viscoelastic-guided bleeding algorithm implementation on blood products use in adult liver transplant patients. A propensity score-matched before-after study	3
Low-dose cyclophosphamide and granulocyte colony-stimulating factor are sufficient for peripheral blood stem cell mobilization in patients with multiple myeloma	3
A survey of blood transfusion errors in Aichi Prefecture in Japan: Identifying major lapses threatening the safety of transfusion recipients	3
Reduced volume of red blood cell priming is safe for pediatric patients undergoing therapeutic plasma exchange	3
Survey based cross-sectional study to analyse the variation of practices at blood centres during COVID-19 pandemic in India	3
Transfusion-associated babesiosis in China: A case report	3
Title: Effect of multiple maternal red cell alloantibodies on the occurrence and severity of Hemolytic Disease of the Fetus and Newborn	3
Extracorporeal photopheresis in the treatment of acute and chronic graft-versus-host disease: A position statement from the Turkish Society of Apheresis (TSA)	3
Perceptions and practices of the Brazilian LGBT+ population toward blood donation	3
Seroepidemiology of Toxoplasma gondii in blood donors in Portugal	3
Pancytopenia in a newborn due to maternal piperacillin and human leukocyte antigen antibodies	3
The secrets of human stem cell-derived transfusable RBC for targeted large-scale production and clinical applications: A fresh look into what we need most and lessons to be learned	3
Basic principles of therapeutic plasma exchange	3
How is transfusion-associated graft-versus-host disease similar to, yet different from, organ transplantation-associated graft-versus-host disease?	3
Comparison of efficacy of packed red blood cell transfusion based on its hemoglobin content versus the standard transfusion practice in thalassemia major patients (HEMOCON study)	3
Benford’s law and metabolomics: A tale of numbers and blood	3
Comparison between intraoperative bleeding score and ROTEM® measurements to assess coagulopathy during major pediatric surgery	3
Anti-A and anti-A,B monoclonal antisera with high titers favor the detection of A weak phenotypes	3
Urgent therapeutic plasma exchange	3
Impact of HLA-G +3142C>G on the development of antibodies to blood group systems other than the Rh and Kell among sensitized patients with sickle cell disease	3
Therapeutic plasma exchange for envenomation: Is it reasonable?	3
Lenograstim versus filgrastim in mobilization before autologous hematopoietic stem cell transplantation in patients with multiple myeloma and lymphoma - Single center experience	3
COVID 19 convalescent plasma: Is there still a place for CCP?	3
Factors influencing voluntary blood donation practice among university students of Bangladesh	3
Blood donors, iron deficiency and supplementation options – Will clinical trials help moving forward?	3
A patient affected by critical COVID-19 pneumonia, successfully treated with convalescent plasma	3
Leukapheresis for CAR-T cell production and therapy	3
Regulatory consideration on preparation and clinical use of COVID-19 convalescent plasma	3
Identifying correlations between donor demographics and isohemagglutinin titers as a potential method to screen for low-titer group O whole blood	3
Human placenta-derived mesenchymal stromal cells transfusion in a critically Ill infant diagnosed with Coronavirus Disease 2019 (COVID-19): A case report	3
DMSO (Me2SO) concentrations of 1-2% in combination with pentaisomaltose are effective for cryopreservation of T cells	3
Idiopathic TTP in the Middle East: Epidemiology and clinical outcomes in infection associated episodes	3
Real-world data of the use and experience of caplacizumab for the treatment of acquired thrombotic thrombocytopenic purpura: Case series	3
−80 °C deep frozen erythrocytes during military operations. The Dutch frozen concept	3
PD-1 blockader-associated atypical hemophagocytic lymphohistiocytosis: A cautionary case report	3
Identifying the possible causes of recurrent leukodepletion filter blockage in whole blood donations	3