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Santos, Milena; Torres, Darlyane; Cardoso, Paula Coutinho; Pandis, Nikolaos; Flores-Mir, Carlos; Medeiros, Rita; Normando, Antonio David (2020). Are cloth masks a substitute to medical masks in reducing transmission and contamination? A systematic review. Brazilian oral research, 34, e123. Sociedade Brasileira de Pesquisa Odontológica 10.1590/1807-3107bor-2020.vol34.0123
