1. Centre for Thrombosis and Haemorrhagic Diseases IRCCS Humanitas Research Hospital Rozzano Milan Italy
2. Thrombosis & Haemostasis Unit Department of Paediatrics Medical University of Vienna Vienna Austria
3. The National Haemophilia Centre The Amalia Biron Thrombosis Research Institute Sheba Medical Centre, Tel Hashomer Tel Aviv University Tel Aviv Israel
4. Department of Haematology Ege University Faculty of Medicine Children's Hospital Bornova Izmir Turkey
5. Department of Paediatrics and Adolescent Medicine Clinical and Molecular Haemostasis University Hospital Frankfurt Goethe University Frankfurt Germany
6. Department of Paediatric Haematology and Biochemistry University Hospital Brno and Masaryk University Brno Czech Republic
7. Department of Paediatric Haematology Emma Children's Hospital Amsterdam UMC University of Amsterdam Amsterdam Netherlands