1. Department of Breast Surgery, Dalian Women and Children's Medical Group, Dalian, People’s Republic of China
2. Department of Breast Surgery, The Second Hospital of Dalian Medical University, Dalian, People’s Republic of China
3. Department of General Surgery, The Hospital of Pyongyang Medical University, Pyongyang, D.P.R. of Korea
4. Department of Pathology, Dalian Women and Children's Medical Group, Dalian, People’s Republic of China
5. Department of Radiology, Dalian Women and Children's Medical Group, Dalian, People’s Republic of China