Dr. Rajendra Kumar, Dr. Amrendra Kumar*. “A Randomized Controlled Trial to Compare the Efficacy and Safety of Glycopyrronium Bromide + salmeterol/fluticasone and Tiotropium Bromide + salmeterol/Fluticasone in Chronic Obstructive Pulmonary Disease”. Innovative Journal of Medical and Health Sciences 10, no. 05 (May 25, 2020): 853–857. Accessed July 22, 2024. https://innovativejournal.in/index.php/ijmhs/article/view/2917.