@article{afederatedcoxmodelwithnonproportional,
  title = {A Federated Cox Model with Non-Proportional Hazards},
  author = {Dekai Zhang and Francesca Toni and Matthew Williams},
  year = {2022},
  eprint = {2207.05050},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2207.05050v1},
}