An improved corpus of disease mentions in PubMed citations Rezarta Islamaj Doğan author Zhiyong Lu author 2012-06 text BioNLP: Proceedings of the 2012 Workshop on Biomedical Natural Language Processing Kevin B Cohen editor Dina Demner-Fushman editor Sophia Ananiadou editor Bonnie Webber editor Jun’ichi Tsujii editor John Pestian editor Association for Computational Linguistics Montréal, Canada conference publication islamaj-dogan-lu-2012-improved https://aclanthology.org/W12-2411/ 2012-06 91 99