chewing tobacco slang term Chaw – Southern & Appalachian for Portion Chewing Tobacco and the Aristocracy
Description
In particular, further investigation is needed to determine if reliance on pack-years is appropriate to guide healthcare policy or for enrollment in clinical trials of COPD, or for other uses, all of which typically rely on a minimum of a 10 pack-year history

they can be used anywhere

It looked fine

I say, People can hear us