3 ms·
However, if there was a strong effect, it would have shown up in this study. So now we know that even if masks do "work", the effect is relatively small at bes
by rippercushions 4y ago
However, if there was a strong effect, it would have shown up in this study. So now we know that even if masks do "work", the effect is relatively small at best.
- mmastrac 4y agoThat's not what the study says at all.