Ultrasonics in diagnosis (Sonar).
D000026:Abortion, Habitual; D002508:Cephalometry; D005260:Female; D005333:Fetus; D005831:Genital Diseases, Female / Q000175:diagnosis*; D006801:Humans; D006828:Hydatidiform Mole / Q000175:diagnosis; D010048:Ovarian Cysts / Q000175:diagnosis; D010923:Placenta Previa / Q000175:diagnosis; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis; D014427:Twins; D014463:Ultrasonography