chaw tobacco definition Urban Dictionary: How to Chew Tobacco: Dip,

McGehee and his colleagues, postdoctoral researchers Huibert Mansvelder and Russel Keith, working with brain tissue from rats, demonstrated how nicotine extends the duration of these rewards

University Press of Florida

Tobacco use costs Oregonians an estimated $5.7 billion a year in medical expenses and lost productivity

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however, in practice, the availability of the documents was only practical when Legacy established the Legacy Tobacco Documents Library at the University of California at San Francisco