Saved by the bell: the role of telephone helpline services in the context of mass-media anti-smoking campaigns.
Wakefield
M
M
Borland
R
R
D000329:Advertising; D004739:England; D015277:Hotlines / Q000706:statistics & numerical data*; D006801:Humans; D008402:Mass Media; D010043:Outcome and Process Assessment, Health Care; D016540:Smoking Cessation / Q000706:statistics & numerical data*