1. RUSH Hemophilia and Thrombophilia Center; Chicago IL USA
2. UK Haemophilia Society; London UK
3. Children's Hospital of Orange County; Orange CA USA
4. Asociación Venezolana para la Hemofilia; Caracas Venezuela
5. Novo Nordisk A/S; Bagsvaerd Denmark
6. Novo Nordisk Inc.; Princeton NJ USA
7. Health Information Research Unit; Department of Clinical Epidemiology and Biostatistics, and Haemophilia Clinic; Department of Medicine; McMaster University; Hamilton ON Canada