Pragmatic MDR: a metadata repository with bottom-up standardization of medical metadata through reuse. - Stefan Hegselmann; Michael Storck; Sophia Gessner; Philipp Neuhaus; Julian Varghese; Philipp Bruland; Alexandra Meidt; Cornelia Mertens; Sarah Riepenhausen; Sonja Baier; Benedikt Stöcker; Jörg Henke; et al. (BMC Medical Informatics Decis. Mak., 2021)