@article{machinelearningforcausalinferenceonthe,
  title = {Machine learning for causal inference: on the use of cross-fit estimators},
  author = {Paul N Zivich and Alexander Breskin},
  year = {2020},
  eprint = {2004.10337},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2004.10337v4},
}