[Development of the electrocariogram during development of the chick embryo].
D000818:Animals; D002642:Chick Embryo; D004562:Electrocardiography; D004622:Embryo, Mammalian / Q000502:physiology*; D004625:Embryo, Nonmammalian / Q000502:physiology*
ELECTROCARDIOGRAPHY/experimental; EMBRYO/physiology