title: John Hay: discoverer of type II atrioventricular block.
authors.affiliation: Department of Internal Medicine, Piedmont Hospital, and the Emory University School of Medicine, Atlanta, Georgia, USA.
authors.forename: C B
authors.initials: CB
authors.lastname: Upshaw
authors.forename: M E
authors.initials: ME
authors.lastname: Silverman
mesh_terms: D002309:Cardiology / Q000266:history*; D004739:England; D006327:Heart Block / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans