title: Start of the art of the heart.
authors.forename: J
authors.initials: J
authors.lastname: Deng
mesh_terms: D004452:Echocardiography / Q000266:history; D005260:Female; D006321:Heart / Q000196:embryology*; D049673:History, 20th Century; D006801:Humans; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000266:history*