1. Department of Cell and Developmental Biology; Sackler Faculty of Medicine; Tel-Aviv University; Tel Aviv Israel
2. Department of Haematology; CCRCB; Queens University; Belfast UK
3. Department of Haematology; Centro Hospitalar e Universitário de Coimbra; Coimbra Portugal
4. Department of Paediatrics and Adolescent Medicine; University Medical Centre Ulm; Ulm Germany
5. Department of Haematology/Oncology; St. Anna Children's Hospital; Medical University of Vienna; Vienna Austria