%0 Conference Proceedings %T Exploring Surface-Level Heuristics for Negation and Speculation Discovery in Clinical Texts %A Apostolova, Emilia %A Tomuro, Noriko %Y Cohen, K. Bretonnel %Y Demner-Fushman, Dina %Y Ananiadou, Sophia %Y Pestian, John %Y Tsujii, Jun’ichi %Y Webber, Bonnie %S Proceedings of the 2010 Workshop on Biomedical Natural Language Processing %D 2010 %8 July %I Association for Computational Linguistics %C Uppsala, Sweden %F apostolova-tomuro-2010-exploring %U https://aclanthology.org/W10-1910 %P 81-82