@inproceedings{clpsych2015sharedtaskdepressionandptsd,
  title = {CLPsych 2015 Shared Task: Depression and PTSD on Twitter},
  author = {Glen Coppersmith and Mark Dredze and Craig Harman and Kristy Hollingshead and Margaret Mitchell},
  year = {2015},
  booktitle = {WS 2015 6},
  url = {https://aclanthology.org/W15-1204},
}