Discovery of homocamptothecin derivative TOP-0618 as a radiosensitive agent for the treatment of pancreatic cancer. - Tang, Yin; Huang, Chengyi; Chen, Di; Gong, Yangyang; Chen, Liang; Chen, Wenjuan; You, Liang; Miao, Zhenyuan; Zhang, Huojun (BMC Cancer, 2025)