title: Nosocomial respiratory infection: The essential role of the laboratory in control efforts.
mesh_terms: D001424:Bacterial Infections / Q000175:diagnosis*; D001431:Bacteriological Techniques; D003428:Cross Infection / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004756:Enterobacteriaceae Infections / Q000175:diagnosis; D005417:Flavobacterium; D006801:Humans; D011014:Pneumonia / Q000175:diagnosis*; D011552:Pseudomonas Infections / Q000175:diagnosis