cigarette act The Public Health Smoking of 1970 Smokefree DeKalb County | DeKalb
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[DOI] [PMC free article] [PubMed] [Google Scholar] Thorsell A, Slawecki CJ, Ehlers CL

Ferris (1989), p

When you quit, this inflammation reduces and in-turn there's more space in the lungs, so your lung capacity can increase

But yes, cannabis is on that list
