Classifying Negative Findings in Biomedical Publications Bei Yu author Daniele Fanelli author 2014-06 text Proceedings of BioNLP 2014 Kevin Cohen editor Dina Demner-Fushman editor Sophia Ananiadou editor Jun-ichi Tsujii editor Association for Computational Linguistics Baltimore, Maryland conference publication yu-fanelli-2014-classifying 10.3115/v1/W14-3403 https://aclanthology.org/W14-3403/ 2014-06 19 23