Aljabri K.S., A. Bokhari S., Severe Vitamin D Deficiency in Saudi Patients with Type 2 Diabetes Mellitus, Journal of Obesity Management, Volume 1, Issue 2, 2019, Pages 34-43, ISSN 2574-450X, https://doi.org/10.14302/issn.2574-450X.jom-19-2987. (http://oap-cancer.orgjom/article/1149) Keywords: Type 2 diabetes mellitus; severevitamin D deficiency.