Peter Hitchens @ClarkeMicah
I think I have asked you ten times .@dellannaluca which *specific* study you rely on for your confidence in the efficacy of N-95 masks. I've also requested you to explain why, and to say if it is an RCT. — PolitiTweet.org
Luca Dellanna @DellAnnaLuca
@ClarkeMicah Which question did I ignore? Please quote a specific question you asked me that I ignored.