title: The origin of echocardiography?
authors.forename: Harvey
authors.initials: H
authors.lastname: Feigenbaum
mesh_terms: D002309:Cardiology / Q000266:history; D004452:Echocardiography / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D013548:Sweden; D009626:Terminology as Topic