@article {1504154, title = {Temporal relation discovery between events and temporal expressions identified in clinical narrative}, journal = {Journal of Biomedical Informatics}, volume = {46}, number = {Supplement}, year = {2013}, pages = {S48-S53}, url = {https://doi.org/10.1016/j.jbi.2013.09.010}, author = {Yao Cheng and Anick, Peter and Hong, Pengyu and Xue, Nianwen} }