1. Systematic Review Initiative; NHS Blood and Transplant; Oxford UK
2. Jon J van Rood Center for Clinical Transfusion Research; Sanquin/Leiden University Medical Center; Leiden Netherlands
3. Transfusion Research Unit, School of Public Health and Preventive Medicine; Monash University; Melbourne Australia
4. Cochrane Haematology, Department I of Internal Medicine; Faculty of Medicine and University Hospital Cologne, University of Cologne; Cologne Germany
5. Cochrane Haematology, Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne; University of Cologne; Cologne Germany
6. Clinical, Research and Development; NHS Blood and Transplant; Oxford UK
7. Erasmus Medical Centre; Rotterdam Netherlands
8. Unit Transfusion Medicine; Sanquin Blood Supply Foundation; Amsterdam Netherlands
9. Haematology/Transfusion Medicine; NHS Blood and Transplant; Oxford UK