@misc{indiciae2e4af88c5994,
  title = {Headache types and panic disorder: directionality and specificity.},
  author = {N Breslau and L R Schultz and W F Stewart and R Lipton and K M Welch},
  year = {2001},
  doi = {10.1212/wnl.56.3.350},
  url = {https://pubmed.ncbi.nlm.nih.gov/11171900/},
  note = {Source identifier: 11171900}
}