[1] Univ Oslo, Oslo Univ Hosp, Inst Clin Med, Dept Haematol, Oslo, Norway
[2] La Paz Univ Hosp IdiPaz, Dept Haematol, Madrid, Spain
[3] Univ Hosp Parma, Reg Reference Ctr Inherited Bleeding Disorders, Parma, Italy
[4] Univ Clin Bonn, Inst Expt Haematol & Transfus Med, Bonn, Germany
[5] erinnungszentrum Rhein Ruhr, Duisburg, Germany
[6] Sobi, Stockholm, Sweden
[7] Sobi, Basel, Switzerland
[8] Univ Copenhagen, Copenhagen, Denmark