Thank you for this information. I've saved a copy and printed off a copy. The printed copy has already left one pro-mask co-worker speechless. Noting the absolute conclusion stated (not even the usual "further study needed" ) along with the publish date is a perfect example of how we can't believe a damn thing our current administration says. If they say it will be sunny and warm, I'm taking my coat and umbrella. And, possibly a snow shovel.