Postoperative fever after elective minimally invasive resection for gastric and colorectal cancer: incidence, risk factors and characteristics - He, Fan; Tang, Chenglin; Yang, Fuyu; Zhao, Dongqin; Xiong, Junjie; Zou, Yu; Chen, Defei; Huang, Guoquan; Qian, Kun (Frontiers in Oncology, 2025)