Clinical Concept Extraction for Document-Level Coding Sarah Wiegreffe author Edward Choi author Sherry Yan author Jimeng Sun author Jacob Eisenstein author 2019-08 text Proceedings of the 18th BioNLP Workshop and Shared Task Dina Demner-Fushman editor Kevin Bretonnel Cohen editor Sophia Ananiadou editor Junichi Tsujii editor Association for Computational Linguistics Florence, Italy conference publication wiegreffe-etal-2019-clinical 10.18653/v1/W19-5028 https://aclanthology.org/W19-5028/ 2019-08 261 272