title: [History of cardiology in the last 100 years: Echocardiography].
authors: Junichi
authors: J
authors: Yoshikawa
mesh_terms: D002309:Cardiology / Q000266:history; D004452:Echocardiography / Q000266:history* / Q000379:methods; D018618:Echocardiography, Doppler, Color; D017548:Echocardiography, Transesophageal; D006331:Heart Diseases / Q000000981:diagnostic imaging; D049673:History, 20th Century