1. Department of Paediatric Haematology; Our Lady's Children's Hospital; Dublin Ireland
2. Internal Medicine V; University of Medicine; Innsbruck Austria
3. Transfusion Service; San Maurizio Regional Hospital; Bolzano Italy
4. Irish Blood Transfusion Service; Dublin Ireland
5. Transfusion Service; Ao San Camillo Forlanini; Roma Italy
6. Medical Clinic 3, Oncology, Hematology; Immunoncology and Rheumatology, University Hospital Bonn; Bonn Germany
7. University College Dublin (UCD); Dublin Ireland