1. Breast Disease Diagnosis and Treatment Center Affiliated Hospital of Qinghai University, Affiliated Cancer Hospital of Qinghai University Xining Qinghai China
2. Qinghai Provincial Clinical Research Center for Cancer; Qinghai Provincial Institute of Cancer Research Xining Qinghai China
3. Department of Surgical Oncology General Hospital of Ningxia Medical University Yinchuan Ningxia Hui Autonomous Region China
4. Qinghai University Xining Qinghai China