can smoking cigarettes cause mouth ulcers Ulcer: Symptoms, Causes, and Treatment Is it okay to smoke
Description
The second study showed that almost all adolescents in an economically disadvantaged, largely minority population were either cigarette smokers or had been exposed to secondhand tobacco smoke

The producers, in some extraordinary act of generosity and entrepreneurial insanity, said, "OK, we'll give you a shot, but if it's not good after one week, you are going to be replaced." And they put up their house as a bond

Inflamm Res (2000) 49:3119

Air pollution exposure: Who is at high risk
