Priya Charan, Reshu Gupta, Prahlad Dhakar. Prevalence of asymptomatic airflow obstruction among patients visiting a tertiary health-care center. Asian J Med Sci [Internet]. 2022 Oct. 1 [cited 2024 Apr. 30];13(10):158-62. Available from: https://nepjol.info/index.php/AJMS/article/view/41882