@article{richard ohrbach2020characteristics,
  title={Clinical Characteristics of Pain Among  Five Chronic Overlapping Pain Conditions},
  author={richard ohrbach,sonia sharma,roger b. fillingim,joel d. greenspan,jonathan d. rosen,gary d. slade},
  journal={Journal of Oral & Facial Pain and Headache},
  volume={34},
  number={S1},
  pages={29--42},
  doi = {10.11607/ofph.2573},
  year={2020}
}