1. Department of Nuclear Medicine, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
2. Department of Clinical Laboratory Diagnostics, Graduate School, Hebei North University, Zhangjiakou, Hebei 075000, P.R. China
3. Physical Examination Center, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
4. Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
5. Clinical Research Center, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China