Gunawan, Vidro Alif, Kemas Muhammad Dahlan, and Legiran. “Correlation of Serum Vitamin D Levels With the Severity of Diabetic Foot Ulcers in Dr. Mohammad Hoesin General Hospital, Palembang, Indonesia”. Sriwijaya Journal of Surgery 6, no. 1 (April 12, 2023): 545-548. Accessed June 14, 2024. https://sriwijayasurgery.com/index.php/sjs/article/view/85.