Adami G, Giollo A, Fassio A, Benini C, Bertoldo E, Bertoldo F, et al. Vitamin D and disease severity in coronavirus disease 19 (COVID-19). Reumatismo [Internet]. 2021 Jan. 18 [cited 2024 Nov. 22];72(4):189-96. Available from: https://www.reumatismo.org/reuma/article/view/1333