Safety and effectiveness of high-dose vitamin C in patients with COVID-19: a randomized open-label clinical trial.
Eur J Med Res. 2021 Feb 11;26(1):20. doi: 10.1186/s40001-021-00490-1.
Eur J Med Res. 2021.
PMID: 33573699
Free PMC article.
Clinical Trial.