Int. J. Environ. Res. Public Health 2012, 9 209 2. Lopez-Quintero, C.; Hasin, D.S.; de Los Cobos, J.P.; Pines, A.; Wang, S.; Grant, B.F.; Blanco, C. Probability and predictors of remission from life-time nicotine, alcohol, cannabis or cocaine dependence: Results from the National Epidemiologic Survey on Alcohol and Related Conditions. Addiction 2010, 106, 657-669. 3. Miller, W.R.; Rollnick, S. Motivational Interviewing: Preparing People for Change, 2nd ed.; Guilford Press: New York, NY, USA, 2002. 4. Clinical Practice Guideline Treating Tobacco Use and Dependence 2008 Update Panel, Liaisons, and Staff. A clinical practice guideline for treating tobacco use and dependence: 2008 update. A U.S. Public Health Service report. Am. J. Prev. Med. 2008, 35, 158-176. 5. Moore, R.A.; Gavaghan, D.J.; Edwards, J.E.; Wiffen, P.; McQuay, H.J. Pooling data for number needed to treat: No problems for apples. BMC Med. Res. Methodol. 2002, 2, doi:10.1186/1471-2288-2-2. 6. Dornelas, E.A.; Sampson, R.A.; Gray, J.F.; Waters, D.; Thompson, P.D. A randomized controlled trial of smoking cessation counseling after myocardial infarction. Prev. Med. 2000, 30, 261-268. 7. Quist-Paulsen, P.; Gallefoss, F. Randomised controlled trial of smoking cessation intervention after admission for coronary heart disease. Br. Med. J. 2003, 327, 1254-1257. 8. Moore, R.A.; Gavaghan, D.; Tramer, M.R.; Collins, S.L.; McQuay, H.J. Size is everything— Large amounts of information are needed to overcome random effects in estimating direction and magnitude of treatment effects. Pain 1998, 78, 209-216. 9. Flather, M.D.; Farkouh, M.E.; Pogue, J.M.; Yusuf, S. Strengths and limitations of meta-analysis: Larger studies may be more reliable. Control Clin. Trials 1997, 18, 568-579; discussion 661-566. 10. Morris, J.A.; Gardner, M.J. Calculating confidence intervals for relative risks (odds ratios) and standardised ratios and rates. Br. Med. J. 1988, 296, 1313-1316. 11. Cook, R.J.; Sackett, D.L. The number needed to treat: A clinically useful measure of treatment effect. Br. Med. J. 1995, 310, 452-454. 12. Dutra, L.; Stathopoulou, G.; Basden, S.L.; Leyro, T.M.; Powers, M.B.; Otto, M.W. A meta-analytic review of psychosocial interventions for substance use disorders. Am. J. Psychiatry 2008, 165, 179-187. 13. Cahill, K.; Ussher, M. Cannabinoid type 1 receptor antagonists (rimonabant) for smoking cessation. Cochrane Database Syst. Rev. 2009, doi:10.1002/14651858.CD005353.pub3. 14. Gourlay, S.G.; Stead, L.F.; Benowitz, N.L. Clonidine for smoking cessation. Cochrane Database Syst. Rev. 2008, doi:10.1002/14651858.CD000058.pub2. 15. Cahill, K.; Stead, L.F.; Lancaster, T. Nicotine receptor partial agonists for smoking cessation. Cochrane Database Syst. Rev. 2011, doi:10.1002/14651858.CD006103.pub5. 16. Hughes, J.R.; Stead, L.F.; Lancaster, T. Antidepressants for smoking cessation. Cochrane Database Syst. Rev. 2010, doi:10.1002/14651858.CD000031.pub3. 17. Lancaster, T.; Stead, L.F. Individual behavioural counselling for smoking cessation. Cochrane Database Syst. Rev. 2008, doi:10.1002/14651858.CD001292.pub2. 18. Lancaster, T.; Stead, L.F. Self-help interventions for smoking cessation. Cochrane Database Syst. Rev. 2009, doi:10.1002/14651858.CD001118.pub2. 19. Rice, V.H.; Stead, L.F. Nursing interventions for smoking cessation. Cochrane Database Syst. Rev. 2009, doi:10.1002/14651858.CD001118.pub2.