title: [Polish cardiology in the last 30 years].
mesh_terms: D002309:Cardiology / Q000266:history*; D004562:Electrocardiography / Q000266:history; D049673:History, 20th Century; D007362:Intensive Care Units / Q000266:history; D011044:Poland; D014672:Vectorcardiography / Q000266:history
vernacular_title: Trzydziestolecie kardiologii w Polsce Ludowej.