@article{karen g. raphael2009summation,
  title={Temporal Summation of Heat Pain in Temporomandibular Disorder
Patients},
  author={karen g. raphael,malvin n. janal,sowmya ananthan,dane b. cook,roland staud},
  journal={Journal of Oral & Facial Pain and Headache},
  volume={23},
  number={1},
  pages={54--64},
  doi = {10.11607/ofph.23.1.10},
  year={2009}
}