title: Sonar: What it can and cannot do in obstetrics.
mesh_terms: D000030:Abortion, Missed / Q000175:diagnosis; D000033:Abortion, Threatened / Q000175:diagnosis; D000037:Abruptio Placentae / Q000175:diagnosis; D000757:Anencephaly / Q000175:diagnosis; D002508:Cephalometry / Q000295:instrumentation; D003937:Diagnosis, Differential; D005260:Female; D005333:Fetus / Q000502:physiology; D006128:Growth; D006801:Humans; D007889:Leiomyoma / Q000175:diagnosis; D009774:Obstetrics / Q000295:instrumentation*; D010048:Ovarian Cysts / Q000175:diagnosis; D010923:Placenta Previa / Q000175:diagnosis; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011271:Pregnancy, Ectopic / Q000175:diagnosis; D011644:Puerperal Disorders / Q000175:diagnosis; D014465:Ultrasonics / Q000009:adverse effects; D014463:Ultrasonography; D014594:Uterine Neoplasms / Q000175:diagnosis