@article{john e. schmidt2009controlled,
  title={A Controlled Comparison of Emotional Reactivity and Physiological Response in Masticatory Muscle Pain Patients},
  author={john e. schmidt,charles r. carlson},
  journal={Journal of Oral & Facial Pain and Headache},
  volume={23},
  number={3},
  pages={230--242},
  doi = {10.11607/ofph.23.3.09},
  year={2009}
}