@inproceedings{semeval2016task12clinicaltempeval,
  title = {SemEval-2016 Task 12: Clinical TempEval},
  author = {Steven Bethard and Guergana Savova and Wei-Te Chen and Leon Derczynski and James Pustejovsky and Marc Verhagen},
  year = {2016},
  booktitle = {SEMEVAL 2016 6},
  url = {https://aclanthology.org/s16-1165},
}