1 Guangzhou Medical Research Institute of Infectious Diseases and Center for Liver Diseases, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China.
2 Department of Obstetrics and Gynecology, Shijiazhuang Maternity and Child Healthcare Hospital, Shijiazhuang, China.
3 Division of Liver Diseases, The Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, China.