1. Department of Peripheral Angiopathy; The First Affiliated Hospital of Xi'an Jiaotong University; Xi'an Shaanxi China
2. Department of Vascular Surgery; Shaanxi Provincial People's Hospital; Xi'an Shaanxi China
3. Department of Hepatobiliary Surgery; Xian Yang Central Hospital; Xian Yang Shaanxi China
4. Department of Emergency Medicine; The Second Affiliated Hospital of Xi'an Jiaotong University; Xi'an Shaanxi China