1. Department of Onco‐Hematology AORN San Giuseppe Moscati Avellino Avellino Italy
2. Department of Clinical Medicine and Surgery Federico II University of Naples Naples Italy
3. Severe Aplastic Anaemia Working Party (SAAWP) of the European Group for Bone Marrow Transplantation (EBMT) Leiden the Netherlands
4. French Reference Centre for Aplastic Anaemia and Paroxysmal Nocturnal Haemoglobinuria Assistance Publique – Hôpitaux de Paris Saint‐Louis Hospital Paris France
5. Bone Marrow Transplant Unit Université de Paris, Denis Diderot Paris France