Blood Transfusion is a bimonthly Journal founded in 1956 by the Italian Society of Transfusion Medicine and Immunohaematology (Società Italiana di Medicina Trasfusionale e Immunoematologia, SIMTI). It publishes Editorials, Reviews, State-of-the-Art Reports, Original Articles, Case Reports, Letters to the Editor, Book Reviews, Forums and Debates on all topics related to Transfusion Medicine, e.g.: transfusion clinical practice, immunohaematology, blood component collection and production, transfusion-transmissible diseases, immunogenetics, histocompatibility, transplantation, haemostasis, medical-legal correlations, biotechnology and connected molecular biology. Blood Transfusion is a Free On-Line Access Publication, as the Editorial Board and all the Affiliated Scientific Societies believe that works reporting the results of scientific research should be openly accessible and freely usable by the entire scientific community.