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Positive Effects of Vitamin D Supplementation in Patients Hospitalized for COVID-19: A Randomized, Double-Blind, Placebo-Controlled Trial.
De Niet S, Trémège M, Coffiner M, Rousseau AF, Calmes D, Frix AN, Gester F, Delvaux M, Dive AF, Guglielmi E, Henket M, Staderoli A, Maesen D, Louis R, Guiot J, Cavalier E. De Niet S, et al. Among authors: coffiner m. Nutrients. 2022 Jul 26;14(15):3048. doi: 10.3390/nu14153048. Nutrients. 2022. PMID: 35893907 Free PMC article. Clinical Trial.