COP4D Platform Utama Kementerian Pendidikan, Pelatihan,

cop4dChronic obstructive pulmonary disease (COPD) is a progressive lung disease. Learn about the stages of COPD, their symptoms, and how to manage the disease here.Chronic obstructive pulmonary disease (COPD) is one of the most common lung diseases. Learn more about symptoms, causes, and treatments of COPD at .