@article{qi-hong shen2025effect,
  title={The effect of oxycodone vs. sufentanil on postoperative delirium in elderly patients undergoing major abdominal surgery: a randomized trial},
  author={dan-hong yu,ya-fen shi,yan-jun chen,ke liu,qi-hong shen},
  journal={Signa Vitae},
  volume={21},
  number={8},
  pages={15--23},
  doi = {10.22514/sv.2025.108},
  year={2025}
}