title: Fetal stimulation by ultrasound.
authors.forename: David J
authors.initials: DJ
authors.lastname: Sahn
authors.forename: Christine E
authors.initials: CE
authors.lastname: Sahn
mesh_terms: D000161:Acoustic Stimulation; D005260:Female; D005318:Fetal Heart / Q000000981:diagnostic imaging; D006801:Humans; D011247:Pregnancy; D016216:Ultrasonography, Prenatal