S. M. Abd El Dayem, O. N. Saleh, N. A. Emara, M. E. Kandil, R. H. Shatla, and S. Elgammal, “Evaluation of Homocysteine, Folic Acid and Vitamin B12 Levels among Egyptian Children with Idiopathic Epilepsy”, Open Access Maced J Med Sci, vol. 2, no. 1, pp. 109–113, Mar. 2014.