title: [Hospital infections in the internal medicine ward: an analysis of Pseudomonas aeruginosa and bacteria in the air].
mesh_terms: D000391:Air Microbiology; D001419:Bacteria / Q000302:isolation & purification*; D003428:Cross Infection / Q000382:microbiology*; D006757:Hospital Units; D006801:Humans; D007388:Internal Medicine; D011550:Pseudomonas aeruginosa / Q000302:isolation & purification*