Huang, Y., M. Kang, H. Li, J.Y. Li, J.Y. Zhang, L.H. Liu, X.T. Liu, Y. Zhao, Q. Wang, C.C. Li, and H. Lee. “Combined Performance of Physical Examination, Mammography, and Ultrasonography for Breast Cancer Screening Among Chinese Women: A Follow-up Study”. Current Oncology 190 (1): eS22-30. Accessed July 3, 2020. https://current-oncology.com/index.php/oncology/article/view/1137.