title: History of ultrasound in cardiology.
authors.affiliation: Division of Cardiology, Children's Hospital Medical Center, Cincinnati, Ohio, USA.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Meyer
mesh_terms: D002309:Cardiology / Q000266:history; D004452:Echocardiography / Q000266:history* / Q000295:instrumentation; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans