X-ray irradiation of pregnant rats:  attempts to produce congenital cardiac anomalies in offspring.
D000818:Animals; D018376:Cardiovascular Abnormalities; D002319:Cardiovascular System; D005260:Female; D006330:Heart Defects, Congenital; D011247:Pregnancy; D051381:Rats; D014965:X-Rays / Q000009:adverse effects
CARDIOVASCULAR DEFECTS, CONGENITAL/experimental; PREGNANCY; ROENTGEN RAYS/injurious effects