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Effect of high-dose vitamin D3 on 28-day mortality in adult critically ill patients with severe vitamin D deficiency: a study protocol of a multicentre, placebo-controlled double-blind phase III RCT (the VITDALIZE study).
Amrein K, Parekh D, Westphal S, Preiser JC, Berghold A, Riedl R, Eller P, Schellongowski P, Thickett D, Meybohm P; VITDALIZE Collaboration Group. Amrein K, et al. BMJ Open. 2019 Nov 12;9(11):e031083. doi: 10.1136/bmjopen-2019-031083. BMJ Open. 2019. PMID: 31722941 Free PMC article.