Part of me wants to say "duh", but studies that show obvious results are still useful.
I had a similar thought when I saw the paper last week that showed masks that don't cover the nose are less effective than those that do. On the one hand, why did we need a study to show this. On the other hand, now we have a study confirming it.
I had a similar thought when I saw the paper last week that showed masks that don't cover the nose are less effective than those that do. On the one hand, why did we need a study to show this. On the other hand, now we have a study confirming it.