1 Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China.
2 Department of Breast Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China.
3 Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China. guyuantinggyt@163.com.