Effects of a 2-Week 5000 IU versus 1000 IU Vitamin D3 Supplementation on Recovery of Symptoms in Patients with Mild to Moderate Covid-19: A Randomized Clinical Trial.
Nutrients. 2021 Jun 24;13(7):2170. doi: 10.3390/nu13072170.
Nutrients. 2021.
PMID: 34202578
Free PMC article.
Clinical Trial.