The efficacy of Percogesic in relief of musculoskeletal pain associated with anxiety.

@article{Gilbert1976TheEO,
  title={The efficacy of Percogesic in relief of musculoskeletal pain associated with anxiety.},
  author={Mary M. Gilbert},
  journal={Psychosomatics},
  year={1976},
  volume={17 4},
  pages={190-3}
}