@Book{BiomedicalIE:2009,
  editor    = {Guergana Savova  and  Vangelis Karkaletsis  and  Galia Angelova},
  title     = {Proceedings of the Workshop on Biomedical Information Extraction},
  month     = {September},
  year      = {2009},
  address   = {Borovets, Bulgaria},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W09-45}
}