1. Department of Pharmacy, Chongqing Emergency Medical Center, Chongqing University Central Hospital, Chongqing 400014, P.R. China
2. Department of Gastroenterology, Tumor Hospital Affiliated to Chongqing University, Chongqing 400030, P.R. China
3. Department of Pharmacy, Jiulongpo District People's Hospital of Chongqing, Chongqing 400050, P.R. China