Akhaine, J. O.; Ramyil, V. M.; Dakum, N. K.; Isichei, C. O.; Shuaibu, S. I.; Ofoha, C. G. Comparison of Serum 25-Hydroxy Vitamin D Amongst Black African Prostate Cancer Patients With Non-Aggressive Versus Aggressive Disease Using the Gleason Score. Int Surg J 2023, 10, 1581-1585.