1Talitha L.Feenstra,Mariannel. L.van Genugten,RudolfT.Hoogenveen,et al. The impact of aging and smoking on the future burden of chronic obstructive pulmonary disease. Am J ResPir Crit Care Med,2001, 164(4): 590-596.
4Halbert RJ, Isonaka S, George D, et al. Interpreting COPD prevalence estimates:what is the true burden of disease?. Chest, 2003,123 (5) : 1684-1692.
5Murray CJL,Lopez AD. Alternative projections of mortality and disability by cause 1990-2020 : Global Burden of Disease Study. Lancet, 1997, 349 (9064) : 1498-1504.
6Zhong NS, Wang C, Ran PX. Prevalence of chronic obstructive pulmonary disease in China. Am J Respir Crit Care Med,2007,176(8) :753-760.
