[Applications of ultrasonics in obstetrics (preliminary report)].
D000328:Adult; D005260:Female; D005318:Fetal Heart; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D014463:Ultrasonography
Aplicaciones del ultrasonido en obstetrícia (reporte preliminar)