1 Institute for Medical Information Processing, Biometry, Epidemiology, IBE, Ludwig-Maximilian University, Munich, Germany.
2 Department of Hematology, Oncology, Ludwig-Maximilian University - Hospital, Munich, Germany.
3 Department of Haematology and Transfusion Medicine and National Haemophilia Centre, University Hospital, Comenius University, Bratislava, Slovakia.
4 Bohn Epidemiology, Boston, Massachusetts, USA.
5 Department of Hematology and Oncology, Unit of Internal Medicine and Haemostasis; and Department of Clinical Medicine and Surgery, Federico II University Hospital, Naples, Italy.
6 Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, Milan, Italy.
7 Department Hematology Bornova, Ege University Children's Hospital, Izmir, Turkey.