1 Service of Pediatric Hematology, Hospital Universitari Vall d'Hebrón, ERN-EuroBloodNet member, Barcelona, Spain.
2 Rare Anemia Disorders Research Laboratory, Cancer and Blood Disorders in Children, Vall d'Hebrón Institut de Recerca, Barcelona, Spain.
3 Department of Women's and Children's Health, University of Padova, ERN-EuroBloodNet member, Padova, Italy.
4 Center for Benign Haematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, ERN-EuroBloodNet member, Utrecht, the Netherlands.
5 Department of Hematology, Amsterdam UMC, University of Amsterdam, ERN-EuroBloodNet member, Amsterdam, the Netherlands.
6 Department of Hematology, Hospital Universitari Vall d'Hebrón, ERN-EuroBloodNet member, Barcelona, Spain.
7 Pediatric Hematology and Oncology Unit, Hospital Gregorio Marañón, Universidad Complutense de Madrid, ERN-EuroBloodNet member, Madrid, Spain.
8 Service of Pediatric Hematology, Hospital Sant Joan de Déu, Universitat de Barcelona, Institut de Recerca Hospital Sant Joan de Déu, ERN-EuroBloodNet member, Barcelona, Spain.
9 Sickle Cell Coordinating Referral Center, Henri Mondor, IMRB, ERN-EuroBloodNet member, Paris, France.
10 Sickle Cell Center, Hôpital Universitaire Necker-Enfants maladies, INSERM 1134 INTS, ERN-EuroBloodNet member, Paris, France.
11 Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Univeristà di Bologna, Italy.
12 Department of Neuroscience, University of Padova, ERN-EuroBloodNet member, Padova, Italy.
13 Department of Medical Sciences, University of Torino, Italy.
14 Molecular Genetics Thalassaemia Department, The Cyprus Institute of Neurology and Genetics, Nicosia, Cyprus.
15 Information Processing and Telecommunications Center, Universidad Politécnica de Madrid, Spain.