@article {1498859,
	title = {A hybrid system for temporal information extraction from clinical text},
	journal = {Journal of the American Medical Informatics Association},
	volume = {20},
	number = {5},
	year = {2013},
	pages = {828-835},
	url = {https://doi.org/10.1136/amiajnl-2013-001635},
	author = {Buzhou Tang and Yonghui Wu and Min Jiang and Chen, Yukun and Denny, Joshua C and Xu, Hua}
}
