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HARVARD Citation
Pi, X. et al. (n.d.). Secondhand smoke during the periconceptional period increases the risk for orofacial clefts in offspring. Paediatric and perinatal epidemiology. 32 (5), pp. 423-427. [Online].
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Pi, X. et al. (n.d.). Secondhand smoke during the periconceptional period increases the risk for orofacial clefts in offspring. Paediatric and perinatal epidemiology. 32 (5), pp. 423-427. [Online].