Ultrasound in the diagnosis of early pregnancy and its complications. A comparative study of the A-, B- and Doppler methods.
D000022:Abortion, Spontaneous; D000033:Abortion, Threatened; D000328:Adult; D004452:Echocardiography; D005260:Female; D005318:Fetal Heart; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008722:Methods; D010049:Ovarian Diseases / Q000175:diagnosis; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011258:Pregnancy Tests; D011271:Pregnancy, Ectopic; D011272:Pregnancy, Multiple; D013997:Time Factors; D014463:Ultrasonography; D014592:Uterine Hemorrhage / Q000175:diagnosis; D014594:Uterine Neoplasms / Q000175:diagnosis; D014599:Uterus / Q000033:anatomy & histology