@misc{indiciaef42ee392aafc,
  title = {High-altitude headache.},
  author = {O Appenzeller},
  year = {1994},
  doi = {10.1046/j.1468-2982.1994.1405318-2.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7828186/},
  note = {Source identifier: 7828186}
}