<style face="normal" font="default" size="100%">Estimating the health-care costs of children born to pregnant smokers in England: cohort study using primary and secondary health-care data</style>

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31<style face="normal" font="default" size="100%">Estimating the health-care costs of children born to pregnant smokers in England: cohort study using primary and secondary health-care data</style><style face="normal" font="default" size="100%">Estimating the health-care costs of children born to pregnant smokers in England: cohort study using primary and secondary health-care data</style>