@article{giorgi2019end,
  title={End-to-end Named Entity Recognition and Relation Extraction using Pre-trained Language Models},
  author={Giorgi, John and Wang, Xindi and Sahar, Nicola and Shin, Won Young and Bader, Gary D and Wang, Bo},
  journal={arXiv preprint arXiv:1912.13415},
  year={2019}
}