Smoking cessation attempts: is it useful to treat hard core smokers?

Smoking cessation attempts: is it useful to treat hard core smokers?. Joly, B.; D'Athis, P.; Gerbaud, L.; Hazart, J.; Perriot, J.; Quantin, C.. Tobacco Induced Diseases. 2016; 14: p.34. doi:10.1186/s12971-016-0100-0
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