Burhan, Asmat, et al. “Frailty, Comorbidity, and Functional Limitation Among Older Adults With Venous Leg Ulcers: A Cross-Sectional Study”. Annals of Neurovascular Recovery, vol. 1, no. 1, Mar. 2026, pp. 51-62, https://eism.web.id/index.php/anr/article/view/86.