title: [Surveillance of nosocomial infections in a second-level hospital: problems and choices].
mesh_terms: D003428:Cross Infection / Q000453:epidemiology / Q000517:prevention & control*; D006748:Hospital Departments; D006769:Hospitals, General / Q000458:organization & administration; D006783:Hospitals, State / Q000458:organization & administration; D006801:Humans; D007902:Length of Stay; D008800:Mexico; D011159:Population Surveillance
vernacular_title: Vigilancia de infecciones nosocomiales en un hospital de segundo nivel: problemas y alternativas.