How safe is diagnostic sonar?
D000818:Animals; D002508:Cephalometry; D000013:Congenital Abnormalities / Q000453:epidemiology; D005260:Female; D005333:Fetus; D051379:Mice; D009774:Obstetrics; D011247:Pregnancy; D011270:Pregnancy, Animal; D014465:Ultrasonics / Q000009:adverse effects* / Q000592:standards; D014463:Ultrasonography