Ruri Intania, Taufik, Yusrizal Chan, Irvan Medison Departemen Pulmonologi dan Ilmu Kedokteran Respirasi Fakultas Kedokteran Universitas Andalas, RSUP Dr. M. Djamil, Padang Abstract Background: Lung damage facilitates the colonization of pathogenic bacteria in lower respiratory tract of COPD patients that induces inflammation of which indeed exacerbation, thus contributing to the progression of obstruction which is […]