title: How Laënnec invented the stethoscope.
abstract: Although it is well known that Laënnec invented the stethoscope, the story of how he invented it is less well known. This article discusses the many theories behind the story as well as the impact of Laënnec's discovery on the practice of cardiology in the 21st century.
authors.forename: Tsung O
authors.initials: TO
authors.lastname: Cheng
mesh_terms: D004867:Equipment Design / Q000266:history; D005602:France; D006331:Heart Diseases / Q000175:diagnosis / Q000266:history; D049672:History, 19th Century; D006801:Humans; D008297:Male; D019023:Stethoscopes / Q000266:history*