He studied Medicine and Biology at Complutense University (Madrid, Spain) and got his PhD in Medicine. He spent 9 years at the London Hospital Medical College and the Middlesex Hospital Medical School (London, UK) training in Immunology and Genetics. He came back to Spain and set up the Immunology departments of Hospital Ramon y Cajal and Hospital 12 de Octubre (Madrid); he also participated in Spanish Transplant Law redaction and promotion and for this he has recently received an Award at Senate by Queen Sofia. He has also set up teaching of Immunology at Biomedical Schools of University Complutense, directed 48 Ph D theses and published 351 articles in Immunology, Ornithology, HLA, MHC, Population Genetics and Anthropology. At present, he works and is Chairman at The Madrid Regional Blood Center and University Complutense (Madrid.