Joint Entity Extraction and Assertion Detection for Clinical Text Parminder Bhatia author Busra Celikkaya author Mohammed Khalilia author 2019-07 text Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics Anna Korhonen editor David Traum editor Lluís Màrquez editor Association for Computational Linguistics Florence, Italy conference publication bhatia-etal-2019-joint 10.18653/v1/P19-1091 https://aclanthology.org/P19-1091/ 2019-07 954 959