Joan Lluis Vives Corrons, MD, PhD is Emeritus Prof. at the University of Barcelona and honorary researcher at the Josep Carreras Institute for Leukaemia Research (IJC). His professional activity has centered on rare anemias and other hematologic diseases. For over 30 years, he was the head of the Haematology Laboratory Department (1976-1997) and the Red Blood Cell Pathology Unit (1998-2016) at the Hospital Clinic of Barcelona. As principal investigator of 35 research projects has focused on the molecular and genetic mechanisms of red blood cell (RBC) disorders as the hereditary hemolytic anemias, including enzymopathies, membranopathies and hemoglobinopathies. In 2002, he coordinated the European Network for Rare and Congenital Anaemias (ENERCA), sponsored by the EC, establishing a pan-European platform for rare anemia clinical care and research. In 2016, ENERCA contributed to the creation of EuroBloodNet, the EU’s Reference Network for Rare Hematological Diseases. He now chairs the Scientific Board of the Rare Anemias International Network (RAIN). He has authored over 300 scientific publications and played a key role in the establishment of the official Newborn Screening Program for Sickle-Cell Disease in Catalonia (2015). Since 2017, as an emeritus professor, he continues his research on rare anemias at the IJC.