@article{yifu he2024and,
  title={Efficacy and safety of immediate-release oxycodone combined with sustained-release oxycodone titration in opioid-tolerant patients with moderate to severe cancer pain},
  author={shusheng wu,jun xie,gang cheng,shunan ding,wanping li,yuliang xu,xiaosi chen,peng xing,yifu he},
  journal={Signa Vitae},
  volume={20},
  number={10},
  pages={72--80},
  doi = {10.22514/sv.2024.128},
  year={2024}
}