Ability of ChatGPT to Replace Doctors in Patient Education: Cross-Sectional Comparative Analysis of Inflammatory Bowel Disease - Zelin Yan; Jingwen Liu; Yihong Fan; Shiyuan Lu; Dingting Xu; Yun Yang; Honggang Wang; Jie Mao; Hou-Chiang Tseng; Tao-Hsing Chang; Yan Chen (Journal of Medical Internet Research)