Hospital Universitario La Fe, University of Salamanca - Instituto de Investigación Biomédica de Salamanca - Institute for Biomedical Research of Salamanca, Hospital de la Santa Creu i Sant Pau, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Hospital Universitario Virgen de la Arrixaca, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Hospital Universitario Doce de Octubre, affiliation not provided to SSRN, INCLIVA Health Research Institute - Hospital Clínico Universitario, Hospital Universitario Infanta Leonor, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Hospital de la Santa Creu i Sant Pau, affiliation not provided to SSRN, Universidad de Salamanca, University of Valencia, affiliation not provided to SSRN, University of Barcelona - Department of Haematology and Hospital Clínico Universitario, Instituto de Investigación INCLIVA

Medical University Lausitz, Karolinska Institutet - Department of Medicine, Leiden University, Leiden University, University of Warsaw - Medical University of Warsaw, Medical University of Warsaw - Department of Haematology, Transplantation and Internal Medicine, - Department of Internal Medicine II, Leiden University, Centre National de Greffe de Moelle Osseuse, Pavlov University, Hospital Universitari i Politècnic La Fe, Universitat Autònoma de Barcelona, IRCCS Istituto Giannina Gaslini, Children's Hospital in Krakow, Hospital de la Santa Creu i Sant Pau, IRCCS Ospedale Policlinico San Martino, Assistance Publique-Hôpitaux de Paris - Hôpital Saint-Louis, Hacettepe University, University of Padova, Nicolaus Copernicus University, Children's Hospital Westmead, Instituto de Investigación Sanitaria Hospital "12 de Octubre" - Department of Hematology, Hadassah Hebrew University, University Medical Center Hamburg- Eppendorf - University Children's Hospital, Jena University - Jena University Hospital, Central Hospital of Southern Pest, Niño Jesus Children`s Hospital, IRCCS Ospedale Policlinico San Martino, Medical University Lausitz, Medical University Lausitz, Nicolaus Copernicus University and Hospital de la Princesa - Hematology Department