[A phonocardiographic study of healthy pregnant women].
D000293:Adolescent; D000328:Adult; D005260:Female; D006321:Heart / Q000502:physiology*; D006801:Humans; D010701:Phonocardiography; D011247:Pregnancy
Fonokardiograficheskoe issledovanie zdorovykh beremennykh zhenshchin.