1. Department of Haematology Sultan Qaboos University Hospital Muscat Oman
2. Division of Clinical Haematology, Department of Medicine, Groote Schuur Hospital University of Cape Town Cape Town South Africa
3. Division of Transfusion Medicine, Department of Pathology and Laboratory Medicine Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Hempstead New York USA
4. Division of Transfusion Medicine, Department of Laboratory Medicine University of California San Francisco San Francisco California USA
5. Department of Pathology, Microbiology and Immunology Vanderbilt University Medical Center Nashville Tennessee USA
6. IQM Consulting and University of Groningen Groningen the Netherlands