NUGRAHA PUTRA, O.; ANABELLA, R. Q.; IN’AMI, I. N.; NUR HASIBULLAH MA, A. Y.; PURWANTO, R. W. The Effect of Smoking on Matrix Metalloproteinase-9 (MMP-9) Expression and Its Relationship with Chronic Obstructive Pulmonary Disease: Systematic Review. Cermin Dunia Kedokteran, [S. l.], v. 53, n. 01, p. 12–18, 2026. DOI: 10.55175/cdk.v53i01.1788. Disponível em: https://cdkjournal.com/index.php/cdk/article/view/1788. Acesso em: 14 jan. 2026.