Department;
of;
Surgery,;
Tongji;
Hospital,;
Tongji;
Medical;
College,;
Huazhong;
University;
of;
Science;
and;
Technology,Wuhan;
430030;
Department;
of;
Surgery,;
Tongji;
Hospital,;
Tongji;
Medical;
College,;
Huazhong;
University;
of;
Science;
and;
Technology,Wuhan;
430030;
breast; cancer; CyclinD1; flow; cytometry; estrogen; receptor;