Muntasir Abbas Medani, Altaf S. Mosad, Sara Osman Yousif, Soad Fadlalla Ali, & Mariam Abbas Ibrahim. (2025). Vitamin D deficiency as risk factor for Multiple myeloma and Renal dysfunction among Sudanese patients. Educational Administration: Theory and Practice, 31(1), 396–400. https://doi.org/10.53555/kuey.v31i1.9397