No butts about it: put the fire out by lighting up.
Hanauer
S B
SB
University of Chicago Medical Center, Illinois 60637, USA.
D003093:Colitis, Ulcerative / Q000628:therapy*; D004305:Dose-Response Relationship, Drug; D006801:Humans; D009538:Nicotine / Q000008:administration & dosage*; D012907:Smoking; D016896:Treatment Outcome
D009538:Nicotine