Cognitive therapy and relaxation training in muscle contraction headache: efficacy and cost-effectiveness.

@article{Attanasio1987CognitiveTA,
  title={Cognitive therapy and relaxation training in muscle contraction headache: efficacy and cost-effectiveness.},
  author={Virginia Attanasio and Frank Andrasik and Edward B. Blanchard},
  journal={Headache},
  year={1987},
  volume={27 5},
  pages={254-60}
}