“Relationship Between Frailty, Prognostic Scores, and Functional Tests in Elderly Patients With Chronic Obstructive Pulmonary Disease”. Research, Society and Development 14, no. 5 (May 22, 2025): e7714548743. Accessed June 28, 2025. https://ojs34.rsdjournal.org/index.php/rsd/article/view/48743.