Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Maria G. Manova and Ivanka I. Kostadinova and Nonka Mateva and Georgi S. Slavov and Zahari I Zahariev and Anastasiya G. Trenova and Pavel I. Pavlov,A Prospective Study on 25 Hydroxyvitamin D Serum Levels in Patients with Relapsing-Remitting Multiple Sclerosis,Journal of Biomedical and Clinical Research,1313-9053,Pensoft Publishers,2014-11-01,7,,37-41,https://cir.nii.ac.jp/crid/1872272492423233920,https://doi.org/10.1515/jbcr-2015-0123