Masks for prevention of viral respiratory infections among health care workers and the public: PEER umbrella systematic review.

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. (2020) Masks for prevention of viral respiratory infections among health care workers and the public: PEER umbrella systematic review. Canadian family physician Medecin de famille canadien 66(7), 509-517.