@article{barry j. sess2012advocacy:,
  title={Pain Advocacy: The Evolution Continues, with Further Calls for Action},
  author={barry j. sess},
  journal={Journal of Oral & Facial Pain and Headache},
  volume={26},
  number={1},
  pages={5--5},
  doi = {10.11607/jofph.2605},
  year={2012}
}