Colonization pressure as a risk factor for colonization by multiresistant Acinetobacter spp and carbapenem-resistant Pseudomonas aeruginosa in an intensive care unit - DalBen, Mirian Freitas; Basso, Mariusa; Garcia, Cilmara Polido; Figueiredo Costa, Silvia; Maria Toscano, Cristiana; Robert Jarvis, William; Lobo, Renata Desordi; Oliveira, Maura Salaroli; Levin, Anna Sara (Clinics, 2013)