Ten-day rule.
D002648:Child; D005260:Female; D005333:Fetus / Q000528:radiation effects*; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011297:Prenatal Exposure Delayed Effects; D011859:Radiography / Q000009:adverse effects / Q000592:standards*; D012307:Risk Factors