Methionine enkephalin: immunomodulator in normal volunteers (in vivo).

@article{Plotnikoff1986MethionineEI,
  title={Methionine enkephalin: immunomodulator in normal volunteers (in vivo).},
  author={Nicholas P. Plotnikoff and George C. Miller and Sheldon Solomon and Robert E. Faith and Laurie D. Edwards and Anthony J. Murgo},
  journal={Psychopharmacology bulletin},
  year={1986},
  volume={22 4},
  pages={1097-100}
}