Systematic review on efficacy of preventive measures for surgical site infection by multiple-drug resistant gram-negative bacilli Juliana Arruda de Matos; Amanda da Silva Gomes; Carla Ormundo G. Ximenes Lima; Carolina Arana Stanis Schmaltz; Cristiane Rocha de Oliveira; Grasiela Martins da Silva; Júlia Herkenhoff Carijó; Marilena Aguiar Lopes; Quenia Cristina Dias Morais; Pedro Emmanuel Alvarenga Americano do Brasil;