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| Oral Clefts And First Trimester Smoking Linked |
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| Medical News - Cleft Palate | |||
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Smoking during the first trimester of pregnancy is clearly linked with an increased risk of cleft lip in newborns. Genes that play a role in detoxification of cigarette smoke do not appear to be involved. This is shown in a new study published in the journal Epidemiology. Oral clefts are one of the most common birth defects. Closure of the lip occurs about 5 weeks into pregnancy, followed by closure of the palate at week 9. Read more: Cleft Palate News From Medical News Today
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