Stopping smoking. Do nicotine chewing-gum and postal encouragement add to doctors' advice.
Campbell
I A
IA
Lyons
E
E
Prescott
R J
RJ
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002638:Chewing Gum; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009538:Nicotine / Q000627:therapeutic use*; D010353:Patient Education as Topic; D000074606:Smoking Prevention
D002638:Chewing Gum; D009538:Nicotine