Khaled Munahi Khaled Alotaibi, Abdulkarim Abdullah Altheely, Abdullah Mohammed Saeed Alqarni, et al. EPIDEMIOLOGY OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE. J Popl Ther Clin Pharmacol. 2022;29(04):3289-3292. doi:10.53555/jptcp.v29i04.5865