Suad, H.H. and Modawe, G.A. 2018. Investigation of Diffuse Hair Fall Case Due to Vitamin D Deficiency: A Case Report and Literature Review. Sudan Journal of Medical Sciences (SJMS). 13, 2 (Jun. 2018), 91-97. DOI:https://doi.org/10.18502/sjms.v13i2.2640.