@article{mathias johansen2021complex,
  title={Why complex surgeries in children are associated with poorer outcomes},
  author={mathias johansen,vincent collard,thomas engelhardt},
  journal={Signa Vitae},
  volume={17},
  number={3},
  pages={5--9},
  doi = {10.22514/sv.2021.060},
  year={2021}
}