@misc{indiciaea9173b4dc15b,
  title = {Posttraumatic headache.},
  author = {R C Packard and L P Ham},
  year = {1994},
  doi = {10.1176/jnp.6.3.229},
  url = {https://pubmed.ncbi.nlm.nih.gov/7950344/},
  note = {Source identifier: 7950344}
}