ShanghaiInstituteofDigestiveDisease;
RenjiHospital;
ShanghaiSecondMedicalUniversity;
Shanghai200001;
China;
DepartmentofInfectiousDiseases;
ChanghaiHospital;
Shanghai200433;
China;
DepartmentofInfectiousDiseases;
PutuoDistrictCentralHospital;
Shanghai200062;
China;
DepartmentofInfectiousDiseases;
ChangzhengHospital;
Shanghai200003;
China;
ShanghaiLiverDiseasesResearchCenterofNanjingMilitaryCommand;
Shanghai200233;
China;
DepartmentofGastroenterology;
ZhongshanHospital;
Shanghai200032;
China;
ShanghaiInfectiousDiseaseHospital;
Shanghai200085;
China;
DepartmentofGastroenterology;
ShanghaiNo.6People'sHospital;
Shanghai200233;
China;
DepartmentofInfectiousDiseases;
RuijinHospital;
Shanghai200025;
China;