70P Hypofractionated radiotherapy in combination with PD-1 inhibitors, GM-CSF and thymosin α1 in advanced relapsed metastatic solid tumors: An interim analysis of a single-arm phase II multicenter prospective clinical study. - Yu, J.; Yin, L.; Wang, Q.; Liu, J.; Zhang, L.; Ye, H.; Xia, J.; Xia, Y.; Wu, J.; Wang, W.; Yang, Y.; Zong, D.; et al. (Annals of Oncology, 2024)