title: [Effectiveness of face masks used in several surgery units in Rome].
mesh_terms: D003428:Cross Infection / Q000517:prevention & control*; D005069:Evaluation Studies as Topic; D006801:Humans; D008397:Masks / Q000592:standards*; D009873:Operating Rooms / Q000592:standards; D013530:Surgical Wound Infection / Q000517:prevention & control*
vernacular_title: Sull'efficienza delle maschere facciali in uso presso alcuni blocchi operatori romani.