@misc{indiciae92e3822de3b2,
  title = {Endorphin patterns within the headache spectrum disorders.},
  author = {G Nappi and F Facchinetti and E Martignoni and F Petraglia and G C Manzoni and G Sances and G Sandrini and A R Genazzani},
  year = {1985},
  doi = {10.1177/03331024850050s240},
  url = {https://pubmed.ncbi.nlm.nih.gov/2990721/},
  note = {Source identifier: 2990721}
}