you stand there and cite errors that disprove their findings?...i.e. that Universal Masking in schools when conditions dictate,,.WORKS.
The NEJM researchers show their rigorous methods and all their data...WestCoast's 'Cochrane Study' authors, on the other hand were criticized in his linked article for more than a few shortcomings by another doctor, which I've posted about earlier...NEJM is undeniably the best Journal we've got...right along with Lancet and Nature...Cochrane is way down the list and has been openly criticized for bias (see my prior link for proof)...who are you going to trust?