5Ng TP, Niti M, Tan WC, et al. Depressive symptoms and chronic obstructive pulmonary disease .. effect on mortalily, hospi- tal readmission, symptom burden, functional status, and quality of life[J].Arch Intern Med,2007,167(1) : 60-67.
5Ng TP,Niti M,Tan WC,et al.Depressive symptoms and chronic obstruetive pulmonary disease:effect on mortality,hospital readmission,symptom burden,functional status,and quMity of life[J].Arch Intern Med,2007,167(1):60-67.
6De Voogd JN,Wempe JB,Koeter GH,et al.Depressive symptoms as predictors of mortality in patients with COPD[J].Chest,2009,135(3):619-625.
7GOLD Executive Committee[DB/OL].Guidelines:Global Strategy for Diagnosis,Management,and Prevention of COPD,November 2006[2006-11-18].http://www.goldcopd.com/Guidelineitem.asp? l1 =2-12 = 1&intId =989.
8Celli BR,MacNee W,Committee members.Standard for the diagnosis and treatment of patients with COPD:a summary of the ATS/ERS position paper.Eur Respir J,2004,23:932-946.
9Celli BR,Cote CG,Marin JM,ct al.The body mass index,airflow obstruction,dyspnea and exercise capacity index in chronic obstructive pulmonary disease.N Engl J Med,2004,350:1005-1012.