1. National Research Center for Hematology Moscow Russia
2. Icahn School of Medicine at Mount Sinai New York New York USA
3. Beaujon Hospital, University of Paris, Assistance Publique‐Hopitaux de Paris Paris France
4. Hospital Ramos Mejia Buenos Aires Argentina
5. Royal Free London NHS Foundation Trust, University College London London UK
6. Sanofi Genzyme Amsterdam The Netherlands
7. Sanofi Genzyme Cambridge Massachusetts USA