@InProceedings{kim-riloff-meystre:2011:ACL-HLT2011,
  author    = {Kim, Youngjun  and  Riloff, Ellen  and  Meystre, St\'{e}phane},
  title     = {Improving Classification of Medical Assertions in Clinical Notes},
  booktitle = {Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies},
  month     = {June},
  year      = {2011},
  address   = {Portland, Oregon, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {311--316},
  url       = {http://www.aclweb.org/anthology/P11-2054}
}