1. Department of Mammography Surgery, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei 075000, P.R. China
2. Department of Radiology, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei 075000, P.R. China
3. Department of Vessels and Glands Surgery, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei 075000, P.R. China