1. Division of Hematology and Oncology; The Vincent Lombardi Comprehensive Cancer Center; Georgetown University Medical Center; Washington, DC USA
2. The Institute of Experimental Haematology and Transfusion Medicine and the Haemophilia Centre at the University Clinic; Bonn Germany
3. Haemophilia Centre Rhein-Main HZRM; Mörfelden-Walldorf Germany
4. Hematology, Hemostasis, Oncology and Stem Cell Transplantation; Hannover Medical School; Hannover Germany
5. Great Ormond Street Hospital for Children NHS Trust; London UK
6. Hematology Division; Director Hemophilia Comprehensive Care Center; Hôpital Edouard Herriot Pavillon E; Université Lyon; Lyon France
7. The Haemophilia Treatment Centre; Vivantes Klinikum im Friedrichshain; Berlin Germany