title: Ultrasonography in obstetrics and gynecology: historical notes, basic principles, safety considerations, and clinical applications.
mesh_terms: D000022:Abortion, Spontaneous / Q000175:diagnosis; D000649:Amniocentesis / Q000379:methods; D002508:Cephalometry / Q000379:methods; D000013:Congenital Abnormalities / Q000175:diagnosis; D004715:Endometriosis / Q000175:diagnosis; D005260:Female; D005313:Fetal Death / Q000175:diagnosis; D005831:Genital Diseases, Female / Q000175:diagnosis*; D005833:Genital Neoplasms, Female / Q000175:diagnosis; D006801:Humans; D006828:Hydatidiform Mole / Q000175:diagnosis; D002820:Hydatidiform Mole, Invasive / Q000175:diagnosis; D006849:Hydrocephalus / Q000175:diagnosis; D007434:Intrauterine Devices; D010048:Ovarian Cysts / Q000175:diagnosis; D000292:Pelvic Inflammatory Disease / Q000175:diagnosis; D010386:Pelvic Neoplasms / Q000175:diagnosis; D010923:Placenta Previa / Q000175:diagnosis; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011271:Pregnancy, Ectopic / Q000175:diagnosis; D011272:Pregnancy, Multiple; D011296:Prenatal Diagnosis; D014465:Ultrasonics / Q000009:adverse effects; D014463:Ultrasonography