title: Development of mechanisms regulating heart rates in human fetuses analyzed by factor analysis.
mesh_terms: D000757:Anencephaly / Q000503:physiopathology; D004677:Encephalocele / Q000503:physiopathology; D005163:Factor Analysis, Statistical; D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D008297:Male; D011247:Pregnancy