title: Surprised by echocardiography.
authors: James
authors: J
authors: Huhta
mesh_terms: D002309:Cardiology / Q000266:history; D004452:Echocardiography / Q000266:history* / Q000379:methods; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D010372:Pediatrics / Q000266:history; D016216:Ultrasonography, Prenatal / Q000266:history*