Verma, Krishna Kumar, Madhulika Peter Samuel, NilamNigam, Shweta Tripathi, and KritiJalota. “A Comparative Study of Ambroxol and N-Acetylcysteine in Chronic Obstructive Pulmonary Disease Patients in a Tertiary Care Hospital, Kanpur (UP)”. Journal of Population Therapeutics and Clinical Pharmacology 33, no. 2 (July 18, 2026): 1114–1120. Accessed October 2, 2026. https://jptcp.com/index.php/jptcp/article/view/13786.