1. Institute for Transfusion Medicine and Immunohematology of Goethe University and German Red Cross Blood Donor ServiceFrankfurt am Main Germany
2. Hexal AGHolzkirchen Germany
3. Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Donor Service and University Hospital UlmUlm Germany
4. Novartis Pharma AGBasel Switzerland
5. Department of Medicine/HematologyUniversity of WashingtonSeattle Washington.