Enhancing responses from large language models with role-playing prompts: a comparative study on answering frequently asked questions about total knee arthroplasty. - Chen, Yi-Chen; Lee, Sheng-Hsun; Sheu, Huan; Lin, Sheng-Hsuan; Hu, Chih-Chien; Fu, Shih-Chen; Yang, Cheng-Pang; Lin, Yu-Chih (BMC Medical Informatics & Decision Making, 2025)