1. Department of Pharmacology, The First Affiliated Hospital, Luohe Medical College, Luohe, Henan 462002, P.R. China
2. Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
3. Department of Emergency, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China