Headline: Public health and masksPublication Date: Wednesday, December 22, 2021Primary Source: Greenfield Recorder (MA)Non-Cato Author: Rich L. RothType: letterFormat: Newspaper (Print)Nature of Mention: mentionedScholar: CatoResearch Area: Health, Welfare & EntitlementsSubjects: the efficacy of masksAttached Files: Cato_greenfield_masks.pdf