1. Adult Thalassaemia Unit, 2nd Department of Internal Medicine, Aristotle University of Thessaloniki, Hippokration General Hospital of Thessaloniki, Thessaloniki, Greece;
2. Haematology Department, Bone Marrow Transplantation Unit, G. Papanicolaou Hospital, Thessaloniki, Greece;
3. Blood Bank, Hippokration General Hospital of Thessaloniki, Thessaloniki, Greece;
4. Haemoglobinopathy Service, Homerton University Hospital National Health Service Foundation Trust, London, UK;
5. Blood Bank, AHEPA Hospital, Thessaloniki, Greece