The Institute of Rare Diseases Research (IIER) of the Carlos III Health Institute (ISCIII) operates across two sites: the Chamartín campus, home to the Epidemiology Area, and the Majadahonda campus, where the sample repository of the National Rare Diseases Biobank (BioNER) is located. For information about its services, the availability of biological samples, or the procedures for accessing its collections, interested parties can contact BioNER through this contact form.