@misc{masuda2012suicide,
  title={Suicide ideation of individuals in online social networks},
  author={Naoki Masuda and Issei Kurahashi and Hiroko Onari},
  year={2012},
  eprint={1207.0561},
  archivePrefix={arXiv},
  primaryClass={cs.SI},
  doi={10.1371/journal.pone.0062262},
  url={https://arxiv.org/abs/1207.0561}
}