[Use of ultrasonics in pregnancy].
D000013:Congenital Abnormalities / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011296:Prenatal Diagnosis; D014463:Ultrasonography / Q000009:adverse effects*
Bruk av ultralyd i svangerskapet.