H. S. Saddique, A. . Ali, and Z. . Aziz, “Assessment of The Level of Illness Perecepton Regarding General Health And Severity Of Disease Among Patients With Chronic Obstructive Pulmonary Diseased : Assessment of Perception Regarding Health and Disease”, PJHS-Lahore, vol. 3, no. 06, pp. 41–45, Nov. 2022.