AN EXPERIMENTAL STUDY OF THE EFFICACY OF GAUZE FACE MASKS.
Masks have not been proved efficient enough to warrant compulsory application for the checking of epidemics, according to Dr. Kellogg, who has conducted a painstaking investigation with gauzes. This investigation is scientific in character, omitting no one of the necessary factors. It ought to settle the much argued question of masks for the public.
Kellogg
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Macmillan
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