Abastract Objective A retrospective analysis of rectification methods and continual improvement on clinical antimicrobial use in a tertiary first-class hospital of Sichuan province. Methods Antimicrobial data from HIS system during January 2011 and December 2016 were collected and analyzed. Results After implementing rectification and subsequent continuous improvement of antimicrobial use, the ratio of antimicrobial prescriptions in the outpatient department and the emergency department, the ratio of antimi...