Correspondence to Hong-Bin Chen, Department of Gastroenterology, Sanming First Municipal Hospital, Room 401, Mudan Xincun 24, Sanming 365000, Fujian Province, China

• 项目负责人陈宏斌，365000，福建省三明市第一医院消化内科，福建省三明市牡丹新村24幢401室.