The diagnostic value of ultrasonography，mammography and their combination in high⁃grade and middle⁃ low⁃grade ductal carcinoma in situ

WU Zhuangzhuang, ZHANG Xiaojuan, SHI Zehong, SHI Yao, YUAN Shaol⁃ing.
The Journal of Practical Medicine . 2022, (5): 560 -564 .  DOI: 10.3969/j.issn.1006⁃5725.2022.05.008