@article{charles r. carlson2007and,
  title={Prevalence and Impact of Post-traumatic Stress Disorder Symptoms in Patients with Masticatory Muscle or Temporomandibular Joint Pain: Differences and Similarities},
  author={elizangela bertoli,reny de leeuw,john e. schmidt,jeffrey p. okeson,charles r. carlson},
  journal={Journal of Oral & Facial Pain and Headache},
  volume={21},
  number={2},
  pages={107--119},
  doi = {10.11607/jofph.21.2.04},
  year={2007}
}