@article{rüdiger emshoff2017between,
  title={Association Between Chronic Tension-Type Headache Coexistent with Chronic Temporomandibular Disorder  Pain and Limitations in Physical and Emotional Functioning: A Case-Control Study},
  author={rüdiger emshoff,felix bertram,dagmar schnabl,iris emshoff},
  journal={Journal of Oral & Facial Pain and Headache},
  volume={31},
  number={1},
  pages={55--60},
  doi = {10.11607/ofph.1654},
  year={2017}
}