The uses and possible hazards of diagnostic ultrasound in medicine.
D001924:Brain Concussion / Q000175:diagnosis; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D005333:Fetus; D005865:Gestational Age; D006801:Humans; D009774:Obstetrics / Q000295:instrumentation; D011247:Pregnancy; D014465:Ultrasonics / Q000009:adverse effects; D014463:Ultrasonography