1. Institute for Medical Radiation and Cell Research (MSZ), Center of Experimental Molecular Medicine (ZEMM), Würzburg, Germany.
2. Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, University of Heidelberg, German Red Cross Blood Service Baden-Württemberg-Hessen, Mannheim, Germany.
3. Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany.