1 Haematology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain. Electronic address: asensi_ped@gva.es.
2 Haematology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
3 Instituto de Investigación Sanitaria (ISS) Hospital La Fe, Valencia, Spain.
4 Haematology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain; School of Medicine and Dentistry, Catholic University of Valencia, Valencia, Spain.
5 Haematology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain; CIBERONC, Instituto Carlos III, Madrid, Spain.