Dr.Sri Durga Saladi and Dr.Pipavath Thirupathi, “PREVALENCE OF COMORBIDITIES AMONG PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE: A HOSPITAL-BASED CROSS-SECTIONAL STUDY”, J Popl Ther Clin Pharmacol, vol. 29, no. 02, pp. 888–894, Apr. 2022, doi: 10.67145/44gfh344.