Dietary supplements and herbal medicine for COVID-19: A systematic review of randomized control trials.
Clin Nutr ESPEN. 2021 Aug;44:50-60. doi: 10.1016/j.clnesp.2021.05.018. Epub 2021 Jun 1.
Clin Nutr ESPEN. 2021.
PMID: 34330513
Free PMC article.