surveillance (1) risque (1) association (1) mortalité (1) infection (1) hôpital (1) effet (1) abords (agglomération) (1) Mortality (1) Case (1) Control (1) Death (1) Methods (1) Catastrophic illness (1) Urinary organs (1) Ci (Chinese poetry) (1) Social groups (1) Risk (1) Population (1) Patients (1) Nosocomial infections (1) Mortality (1) Matter (1) Human beings (1) Intensive care units (1) Infection (1) University hospitals (1) Holy Cross (1) Grammar, Comparative and general--Case (1) French (1)