For citations:
Vilms E.A., Dobrovolskaya E.V., Turchaninova M.S., Bykova E.A., Sohoshko I.A. Vitamin D status of patients with systemic inflammatory connective tissue diseases: a cross-sectional study. Osteoporosis and Bone Diseases. 2021;24(3):4-10. (In Russ.) https://doi.org/10.14341/osteo12931

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