Akhaine, Julius O., Venyir M. Ramyil, Nuhu K. Dakum, Christian O. Isichei, Samaila I. Shuaibu, and Chimaobi G. Ofoha. “Comparison of Serum 25-Hydroxy Vitamin D Amongst Black African Prostate Cancer Patients With Non-Aggressive Versus Aggressive Disease Using the Gleason Score”. International Surgery Journal 10, no. 10 (September 28, 2023): 1581–1585. Accessed February 20, 2026. https://www.ijsurgery.com/index.php/isj/article/view/9892.