title: The first heart beats and the beginning of the embryonic circulation.
authors.forename: B M
authors.initials: BM
authors.lastname: PATTEN
mesh_terms: D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian; D006339:Heart Rate; D009200:Myocardial Contraction
keywords: EMBRYO; HEART BEAT AND RHYTHM