@article{proximalcausalinferencewithhidden,
  title = {Causal Inference with Hidden Mediators},
  author = {AmirEmad Ghassami and Alan Yang and Ilya Shpitser and Eric Tchetgen Tchetgen},
  year = {2021},
  eprint = {2111.02927},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2111.02927v2},
}