@misc{indiciae1d8e8cf39745,
  title = {[Psychogenic headache].},
  author = {M Ihde and I Martius and H Rambach and R Heidrich},
  year = {1974},
  url = {https://pubmed.ncbi.nlm.nih.gov/4449914/},
  note = {Source identifier: 4449914}
}