Dugré N, Ton J, Perry D, Garrison S, Falk J, McCormack J, Moe S, Korownyk CS, Lindblad AJ, Kolber MR, Thomas B, Train A, Allan GM. Masks for prevention of viral respiratory infections among health care workers and the public: PEER umbrella systematic review. Can Fam Physician. 2020 Jul;66(7):509-517. PMID: 32675098; PMCID: PMC7365162. Objective: To determine […]