title: The electrocardiogram on stamps (Part 1).
authors.forename: M K
authors.initials: MK
authors.lastname: Davies
authors.forename: A
authors.initials: A
authors.lastname: Hollman
mesh_terms: D000415:Albania; D001317:Austria; D004562:Electrocardiography / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D010678:Philately; D011044:Poland