For citations:
Karonova T.L., Vashukova M.A., Gusev D.A., Golovatuk K.A., Grineva E.N. Vitamin D deficiency as a factor for immunity stimulation and lower risk of acute respiratory infections and COVID-19. "Arterial’naya Gipertenziya" ("Arterial Hypertension"). 2020;26(3):295-303. (In Russ.) https://doi.org/10.18705/1607-419X-2020-26-3-295-303