@misc{indiciaeca203d480441,
  title = {[Chronic headache].},
  author = {S Conigliaro and R Rosà and F Osimo and E Fumagalli and G Cavaliere and G Arrigo},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/2885789/},
  note = {Source identifier: 2885789}
}