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Are masks necessary in operating rooms, in ordinary times?

Questions of masks and spittle, and separately—and startlingly—the question of whether masks are necessary in ordinary, non-pandemic times in hospital operating rooms. Four medical studies covering those topics get a good looking at in the “Wear a Mask?” column in the special Small Animals issue (vol. 26, no 3) of the Annals of Improbable Research.

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