High-Dose Cholecalciferol Booster Therapy is Associated with a Reduced Risk of Mortality in Patients with COVID-19: A Cross-Sectional Multi-Centre Observational Study.
Nutrients. 2020 Dec 11;12(12):3799. doi: 10.3390/nu12123799.
Nutrients. 2020.
PMID: 33322317
Free PMC article.
Clinical Trial.