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Changing trends of Citrobacter-Enterobacter-Serratia UDR isolates over the 10-year study period (2008–2017). Blue dashed line indicates isolates from outpatients, while red dashed line isolates from inpatients; R2: coefficient of determination. R2outpatients: 0.4617 (46.17%; p = 0.043), R2inpatients: 0.0483 (4.83%; not significant).
