%0 Journal Article %J Journal of the American Medical Informatics Association %D 2013 %T An end-to-end system to identify temporal relation in discharge summaries: 2012 i2b2 challenge %A Xu, Yan %A Yining Wang %A Tianren Liu %A Junichi Tsujii %A Eric I-Chao Chang %B Journal of the American Medical Informatics Association %V 20 %P 849-858 %G eng %U https://doi.org/10.1136/amiajnl-2012-001607 %N 5