demonstrated suggested inconclusive safety concern ongoing study display ongoing demontrated benefit only observational study
COVID-19 prophylaxis (excluding children)
Vitamins
vitamin C Bengu

2 studies excluded by filtering options 2

5671 Aisa-Alvarez, 2020 210excludedrisk of bias not avaialble
7995 Hazan, 2021 2320excludednot a RCTrisk of bias not avaialble