@InProceedings{apostolova-tomuro:2010:BioNLP,
  author    = {Apostolova, Emilia  and  Tomuro, Noriko},
  title     = {Exploring Surface-Level Heuristics for Negation and Speculation Discovery in Clinical Texts},
  booktitle = {Proceedings of the 2010 Workshop on Biomedical Natural Language Processing},
  month     = {July},
  year      = {2010},
  address   = {Uppsala, Sweden},
  publisher = {Association for Computational Linguistics},
  pages     = {81--82},
  url       = {http://www.aclweb.org/anthology/W10-1910}
}