1. Treating tobacco use and dependence. Clinical practice guideline;Fiore,2000
2. Partnership to reduce tobacco dependence,1999
3. The health consequences of smoking: chronic obstructive lung disease,1994
4. COPD early intervention trial (Lung Health Study): baseline characteristics of randomized subjects;Buist;Chest,1993
5. Murray CJ, Lopez AD, Mathers CD, et al. The global burden of disease 2000 project: global programme on evidence for health policy discussion. Paper No. 36. Geneva: WHO; 2001.