Fathelrahman E.Ahmed and Manal A Mohammed (2018) “Vitamin D status of Sudanese Children with Sickle Cell Anemia”, Global Journal of Medical Research, 18(F3), pp. 13–20. Available at: https://medicalresearchjournal.org/index.php/GJMR/article/view/1555 (Accessed: 5 May 2024).