@misc{indiciae154c9846e19d,
  title = {Spinal headache and postconcussion headache; preliminary report.},
  author = {B JUDOVICH and G R NOBEL and P POLAKOFF and W SAGEN},
  year = {1956},
  doi = {10.1016/s0002-9610(56)80119-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/13354869/},
  note = {Source identifier: 13354869}
}