The value of ultrasound in diagnosing metastatic internal mammary lymph nodes in preoperative breast cancer - Ji, Xiaohui; Shi, Kexin; Li, Juanjuan; Wei, Mengying; Liu, Zhikun; Xu, Jianxia (Gland Surgery; Vol 9, No 5 (October 30, 2020): Gland Surgery, 2020)