Letter: Antenatal radiography and the ten-day rule.
D004622:Embryo, Mammalian / Q000000981:diagnostic imaging / Q000528:radiation effects*; D005260:Female; D006801:Humans; D009381:Neoplasms, Radiation-Induced; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011296:Prenatal Diagnosis / Q000009:adverse effects*; D011830:Radiation Effects; D011859:Radiography; D013997:Time Factors