1. Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei China
2. Infrastructure Management Department, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
3. Department of Dermatovenereology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong China
4. Department of Gastrointestinal Surgery, Renmin Hospital of Wuhan University, Wuhan Hubei Province, China