title: Persistent increase in caffeine concentrations in people who stop smoking.
authors.affiliation: Clinical Pharmacology Unit, San Francisco General Hospital Medical Center, CA 94110.
authors.forename: N L
authors.initials: NL
authors.lastname: Benowitz
authors.forename: S M
authors.initials: SM
authors.lastname: Hall
authors.forename: G
authors.initials: G
authors.lastname: Modin
mesh_terms: D000328:Adult; D002110:Caffeine / Q000097:blood* / Q000378:metabolism; D003069:Coffee; D006801:Humans; D008875:Middle Aged; D012907:Smoking / Q000097:blood* / Q000378:metabolism
chemical_list: D003069:Coffee; D002110:Caffeine