title: Access to the documentation of the half-century development in electrocardiology.
authors.forename: Stefan
authors.initials: S
authors.lastname: Nelwan
authors.forename: Ljuba
authors.initials: L
authors.lastname: Bacharova
mesh_terms: D003226:Congresses as Topic / Q000266:history*; D004282:Documentation / Q000266:history*; D004562:Electrocardiography / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D007390:International Agencies / Q000266:history*; D011044:Poland; D012955:Societies, Medical / Q000266:history*