Children exposed to SHS in public places had a 1.5 times higher NNAL concentration compared to those who were not exposed, but there was no statistically significant difference when the sex, age, and parental smoking patterns were adjusted (Appendix figure)
Two studies in particular are often cited to support this idea
Tobacco and Vanilla no surprises here
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The new Form 4473 and continuation sheets are available for preorder in English and Spanish here , and FFLs can expect those preorders to begin shipping in late July 2020