Said Al Hariri, .A. and Ali Oliwi AL Huzali , S. 2020. Relationships, Differences, and Predicting the Level of Vitamin (D) Deficiency and the Symptoms of Mood Disorder on a Sample of Cliants of some Private Medical Laboratories in Makkah ALMokarramah City – Kingdom of Saudi Arabia. Journal of College of Education. 2, 39 (Jun. 2020), 327–346. DOI:https://doi.org/10.31185/eduj.Vol2.Iss39.1415.