Solitary painful piezogenic pedal papule in a patient with rheumatoid arthritis.

@article{Ronnen1987SolitaryPP,
  title={Solitary painful piezogenic pedal papule in a patient with rheumatoid arthritis.},
  author={Meyer Ronnen and Saul M Suster and Monica Huszar and M Schewach-Millet},
  journal={International journal of dermatology},
  year={1987},
  volume={26 4},
  pages={240-1}
}