title: Internet-based intervention may help smokers quit, study finds.
mesh_terms: D001521:Behavior Therapy; D001944:Breath Tests; D002248:Carbon Monoxide / Q000032:analysis; D003376:Counseling; D005500:Follow-Up Studies; D006801:Humans; D020407:Internet; D010353:Patient Education as Topic; D016032:Randomized Controlled Trials as Topic; D012423:Rural Health; D016540:Smoking Cessation / Q000379:methods*
chemical_list: D002248:Carbon Monoxide