1. Institute for Immunhematology and Transfusionmedicine, Red Cross Blood Donor Service Hessia, Frankfurt/Main, Germany; Chemotherapeutisches Forschungsinstitut Georg-Speyer-Haus, Franfurt am Main, Germany
2. Institute for Immunhematology and Transfusionmedicine, Red Cross Blood Donor Service Hessia, Frankfurt/Main, Germany
3. Pediatric Hematology and Oncology, Johann Wolfgang Goethe-University, Frankfurt/Main, Germany.