Clinicopathological and genetic characterization of radiotherapy-induced undifferentiated pleomorphic sarcoma following breast cancer: a case series of three tumors and comprehensive literature review. - Lei, Ting; Shen, Zhiyi; Shen, Mengjia; Du, Lingfang; Shi, Yongqiang; Peng, Yan; Zhou, Zidi; Da, Wenyue; Chen, Xi; Li, Qing (Diagnostic Pathology, 2024)