@inproceedings{michalopoulos-etal-2021-umlsbert,
    title = "{U}mls{BERT}: Clinical Domain Knowledge Augmentation of Contextual Embeddings Using the {U}nified {M}edical {L}anguage {S}ystem {M}etathesaurus",
    author = "Michalopoulos, George  and
      Wang, Yuanxin  and
      Kaka, Hussam  and
      Chen, Helen  and
      Wong, Alexander",
    editor = "Toutanova, Kristina  and
      Rumshisky, Anna  and
      Zettlemoyer, Luke  and
      Hakkani-Tur, Dilek  and
      Beltagy, Iz  and
      Bethard, Steven  and
      Cotterell, Ryan  and
      Chakraborty, Tanmoy  and
      Zhou, Yichao",
    booktitle = "Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies",
    month = jun,
    year = "2021",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2021.naacl-main.139/",
    doi = "10.18653/v1/2021.naacl-main.139",
    pages = "1744--1753"
}