The first randomized controlled trial found masks did not statistically significantly reduce the incidence of infection.
— Read on articles.mercola.com/sites/articles/archive/2020/12/03/efficacy-of-surgical-masks.aspx
The first randomized controlled trial found masks did not statistically significantly reduce the incidence of infection.
— Read on articles.mercola.com/sites/articles/archive/2020/12/03/efficacy-of-surgical-masks.aspx