El Joueid, Youssef Khaled, and Ekaterine Cherkezishvili. “Does Vitamin D Supplementation, Reduce The Risk of Multiple Sclerosis, Compared to Usual Preventive Measures, In Young Adults Living In High Latitudes Who Have Experienced The First Episode of Neurological Dysfunction Highly Suggestive of Multiple Scleros”. Caucasus Journal of Health Sciences and Public Health, vol. 5, no. 1, Apr. 2021, pp. 103-10, https://caucasushealth.ug.edu.ge/index.php/caucasushealth/article/view/368.