Adami G, Giollo A, Fassio A, Benini C, Bertoldo E, Bertoldo F, Orsolini G, Idolazzi L, Viapiana O, Giannini S, Passeri G, Tacconelli E, Micheletto C, Gatti D, Rossini M. Vitamin D and disease severity in coronavirus disease 19 (COVID-19). Reumatismo [Internet]. 2021 Jan. 18 [cited 2024 Apr. 24];72(4):189-96. Available from: https://www.reumatismo.org/reuma/article/view/1333