February 19, 2021

Update: This article was removed from the Lancet server on February 19th, 2021 (Link)

Background: Vitamin D deficiency is common amongst critically ill patients and there has been ample speculation about a possible role for supplementation (with calcifediol) in the treatment of patients with COVID19. Calcifediol is cheap, readily available and, has minimal side effects making it an ideal therapeutic - if it works. To date, there is limited high-quality evidence on efficacy.

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