Biomedical Event Extraction as Multi-turn Question Answering Xing David Wang author Leon Weber author Ulf Leser author 2020-11 text Proceedings of the 11th International Workshop on Health Text Mining and Information Analysis Eben Holderness editor Antonio Jimeno Yepes editor Alberto Lavelli editor Anne-Lyse Minard editor James Pustejovsky editor Fabio Rinaldi editor Association for Computational Linguistics Online conference publication wang-etal-2020-biomedical 10.18653/v1/2020.louhi-1.10 https://aclanthology.org/2020.louhi-1.10/ 2020-11 88 96