Patients are not screened high 82.2%, sentinel node biopsy rate is 44.9%, the tumors at superior lateral are highest 39.9%, the tumor size 2-≤5 cm are highest 74.6%, 1 - 3 metastatic lymph node rate is 80.5%, grade 2 are highest 70.3%, ER, PR (+) 61.8%, HER 2 (+) 33.8%; group I (ER / PR (+), HER 2 (+)) 30.5% highest, The TAC regimen showed DFS and OS was 74, 6% and 85, 6%.