Further developments in diagnostic sonar in obstetrics and gynecology.
D000013:Congenital Abnormalities / Q000175:diagnosis; D005069:Evaluation Studies as Topic; D005260:Female; D005318:Fetal Heart; D005833:Genital Neoplasms, Female / Q000175:diagnosis; D006334:Heart Function Tests / Q000379:methods; D006801:Humans; D007433:Intrauterine Device Expulsion; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011272:Pregnancy, Multiple; D011296:Prenatal Diagnosis; D011644:Puerperal Disorders / Q000175:diagnosis*; D014427:Twins; D014465:Ultrasonics / Q000379:methods; D014463:Ultrasonography