1. 1) Global Initiative for Chronic Obstructive Lung Disease. Global strategy of the diagnosis, management, and prevention of chronic obstructive pulmonary disease, revised 2011 (Online). “The Global Initiative for Chronic Obstructive Lung Disease.”: ‹http://www.goldcopd.org/guidelines-global-strategy-for-diagnosis-management.html›, Accessed 5 March, 2012.
2. 3) Zhong N, Wang C, Yao W, Chen P, Kang J, Huang S, Chen B, Wang C, Ni D, Zhou Y, Liu S, Wang X, Wang D, Lu J, Zheng J, Ran P. Prevalence of chronic obstructive pulmonary disease in China: a large, population-based survey. Am. J. Respir. Crit. Care Med., 176, 753–760 (2007).
3. 4) Li XJ, Li Q, Si LY, Yuan QY. Bacteriological differences between COPD exacerbation and community-acquired pneumonia. Respir. Care, 56, 1818–1824 (2011).
4. 5) Bari MR, Hiron MM, Zaman SM, Rahman MM, Ganguly KC. Microbes responsible for acute exacerbation of COPD. Mymensingh Med. J., 19, 576–585 (2010).
5. 6) Lin SH, Kuo PH, Hsueh PR, Yang PC, Kuo SH. Sputum bacteriology in hospitalized patients with acute exacerbation of chronic obstructive pulmonary disease in Taiwan with an emphasis on Klebsiella pneumoniae and Pseudomonas aeruginosa. Respirology, 12, 81–87 (2007).