Department;
of;
Medical;
Oncology,;
The;
4th;
Hospital;
of;
Hebei;
Medical;
University,;
Shijiazhuang;
050011,;
China;
Department;
of;
Pathology,;
Renmin;
Hospital,;
Cangzhou;
071000,;
China;
Lab.;
of;
Experimental;
Pathology,;
Hebei;
Medical;
University,;
Shijiazhuang;
050017,;
China;
化疗方案; MCF-7; 乳腺癌; 荷瘤裸鼠; 抑瘤作用; PCNA;