title: Stamps in cardiology. Exercise testing.
authors.forename: M K
authors.initials: MK
authors.lastname: Davies
authors.forename: A
authors.initials: A
authors.lastname: Hollman
mesh_terms: D003462:Cuba; D004562:Electrocardiography / Q000266:history; D005080:Exercise Test / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D010678:Philately; D012426:Russia