[Electro-acoustic problems of fetal phonocardiography].
D000162:Acoustics; D004562:Electrocardiography; D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D008722:Methods; D010701:Phonocardiography; D011247:Pregnancy; D013997:Time Factors
Elektroakustické problémy fetální fonokardiografie.