Surface cleaning effectiveness in a walk-in emergency care unit: influence of a multifaceted intervention - Frota, Oleci P.; Ferreira, Adriano Menis; Koch, Rodrigo; Andrade, Denise de; Rigotti, Marcelo Alessandro; Borges, Najla M. A.; Almeida, Margarete T. G. (American Journal of Infection Control, 2016)