@article {1498810,
	title = {A classification approach to coreference in discharge summaries: 2011 i2b2 challenge},
	journal = {Journal of the American Medical Informatics Association},
	volume = {19},
	number = {5},
	year = {2012},
	pages = {897-905},
	url = {https://doi.org/10.1136/amiajnl-2011-000734},
	author = {Xu, Yan and Jiahua Liu and Jiajun Wu and Wang, Yue and Zhuowen Tu and Jian-Tao Sun and Junichi Tsujii and Eric I-Chao Chang}
}
