Nisar, Sibtain, and Mohammad Aman. “Multidimensional Frailty and Its Impact on Rehabilitation Outcomes in Older Adults With Chronic Heart Failure and Chronic Obstructive Pulmonary Disease”. Pakistan Journal of Chest Medicine 30, no. 4 (December 2, 2024): 478–483. Accessed June 12, 2026. https://www.pjcm.net/index.php/pjcm/article/view/989.