Rashid , Muhammad Noman, Zulfiqar Laghari, Riaz Shahid, Saleem ullah Atta Abro, Qurratulain Saleem, and Beenish Noman. 2022. “Evaluation of Atypical Bacteria Involved in Recurrent Deterioration of Symptoms in Chronic Obstructive Pulmonary Disease”. Journal of Liaquat University of Medical & Health Sciences 20 (5):335-40. http://ojs.lumhs.edu.pk/index.php/jlumhs/article/view/547.