Maria L Lozano1, Francesco Rodeghiero2. 1. Hospital Universitario Morales Meseguer, Centro Regional de Hemodonacion, Universidad de Murcia, IMIB-Arrixaca, CB15/00055-CIBERER, Murcia 3007, Spain. Electronic address: mllozano@um.es. 2. Hematology Project Foundation, Department of Hematology, San Bortolo Hospital, Vicenza, Italy.