Department of Hepatobiliary Surgery;
The First Affil- iated Hospital;
Hebei Medical University;
Shijiazhuang;
Hebei 050013;
P. R. China;
Experimental Animal Center;
The Fourth Affiliated Hospital;
Hebei Medical University;
Shijiazhuang;
Hebei 050011;
P. R. China.;
Department of Breast Clinics Center;
The Fourth Affiliated Hospital;
Hebei Medical University;
Shijiazhuang;
Hebei 050011;
P. R. China.;
Department of Pathology;
The Fourth Affiliated Hospital;
Hebei Medical University;
Shijiazhuang;
Hebei 050011;
P. R. China.;