@inproceedings{xu-etal-2009-investigation,
    title = "Investigation of Unsupervised Pattern Learning Techniques for Bootstrap Construction of a Medical Treatment Lexicon",
    author = "Xu, Rong  and
      Morgan, Alexander A.  and
      Das, Amar  and
      Garber, Alan",
    editor = "Cohen, K. Bretonnel  and
      Demner-Fushman, Dina  and
      Ananiadou, Sophia  and
      Pestian, John  and
      Tsujii, Jun{'}ichi  and
      Webber, Bonnie",
    booktitle = "Proceedings of the {B}io{NLP} 2009 Workshop",
    month = jun,
    year = "2009",
    address = "Boulder, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W09-1308/",
    pages = "63--70"
}