Lindra, D.A. , Purwaningsih, E. , Utomo, A.R.H. , Yunus, F. and Harahap, M.E. 2025. The Impact of Klotho Gene Polymorphisms on Chronic Obstructive Pulmonary Disease (COPD): A Systematic Review. Respiratory Science. 5, 2 (Feb. 2025), 99-114. DOI:https://doi.org/10.36497/respirsci.v5i2.165.