Enhancing Physician-Patient Communication in Oncology Using GPT-4 Through Simplified Radiology Reports: Multicenter Quantitative Study - Xiongwen Yang; Yi Xiao; Di Liu; Huiyou Shi; Huiyin Deng; Jian Huang; Yun Zhang; Dan Liu; Maoli Liang; Xing Jin; Yongpan Sun; Jing Yao; et al. (Journal of Medical Internet Research)