1. Department of Head Neck Thyroid and Mammary Surgery Tumor Hospital of Mudanjiang City Mudanjiang Heilongjiang China
2. Department of Mammary Surgery The Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
3. Department of Mammary Surgery Affiliated Cancer Hospital of Harbin Medical University Harbin Heilongjiang China
4. Campus Direct Outpatient Department Harbin Medical University Harbin Heilongjiang China
5. Inpatient Department of Ultrasound Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China