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These effects can significantly reduce the likelihood of successful conception and increase the risk of pregnancy complications and adverse reproductive outcomes

But Nelsons most remarkable bust story came in 1977

Decreased saliva flow, increased tarter and plaque, and higher pH levels in the mouth are a few of the reasons a smoker is much more likely to harbor the cavity causing bacteria Streptococcus Mutans in higher than normal concentrations

[] We also estimated a model of Equation 1 directly which includes smoking prevalence, a time trend, and all our smuggling variables included in the second stage of our model

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