@inproceedings{conway-etal-2009-using,
    title = "Using Hedges to Enhance a Disease Outbreak Report Text Mining System",
    author = "Conway, Mike  and
      Doan, Son  and
      Collier, Nigel",
    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://aclanthology.org/W09-1318/",
    pages = "142--143"
}