Radioimmunoassays for alpha-endorphin and beta-endorphin.

@article{Guillemin1977RadioimmunoassaysFA,
  title={Radioimmunoassays for alpha-endorphin and beta-endorphin.},
  author={Roger Guillemin and Nicholas Ling and Thomas A. Vargo},
  journal={Biochemical and biophysical research communications},
  year={1977},
  volume={77 1},
  pages={361-6}
}