Quite compelling evidence according to Harvard professor of Medicine, JoAnn E. Manson.
https://www.medscape.com/viewarticle/930152
Dr John Campbell also believes there is evidence to show there is a correlation between vitamin D and Covid-19.
Quite compelling evidence according to Harvard professor of Medicine, JoAnn E. Manson.
https://www.medscape.com/viewarticle/930152
Dr John Campbell also believes there is evidence to show there is a correlation between vitamin D and Covid-19.
