、TA三E) VIC OBSTRUCTIVE JING DISEASSS Introduction Chronic Obstructive Pulmonary Disease(COPD) .the 4th leading cause of death globally is projected to be the 3rd leading cause of death by 2020Introduction Chronic Obstructive Pulmonary Disease (COPD) •the 4th leading cause of death globally •is projected to be the 3rd leading cause of death by 2020