1. From the D Biomed Età Evolutiva, University di Bari, Bari, Italy; the Department of Medicine, University College London, Rayne Institute, London, UK; the Department di Pediatria, II University Napoli, Napoli, Italy; Service d’Hématologie, and INSERM U473, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France; and Service di Genetica Medica, IRCCS-CSS, San Giovanni Rotondo (Fg), Italy.