Improved techniques in ultrasonic cross sectional echography.
D000328:Adult; D001940:Breast / Q000033:anatomy & histology; D005123:Eye / Q000033:anatomy & histology; D005260:Female; D005333:Fetus / Q000033:anatomy & histology; D006801:Humans; D006828:Hydatidiform Mole / Q000175:diagnosis; D009991:Oscillometry; D011247:Pregnancy; D014159:Transducers; D014463:Ultrasonography