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Smoking in Early Pregnancy Raises Baby's Risk of Heart Defects 

Smoking early in pregnancy increases the risk of having babies with heart defects, according to a study by the U.S. Centers for Disease Control and Prevention.

Women who smoked anytime during the month before pregnancy to the first three months are more likely to give birth to infants with congenital heart defects than those who didn't smoke, the CDC said in a statement. The study is published in the April issue of Pediatrics. Heavier smoking was associated with higher risk.

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