@misc{indiciaef72502d7f2fa,
  title = {[Contingent negative deviation in children with headaches].},
  author = {Z V Cherniak and L R Zenkov and N N Iakhno},
  year = {2003},
  url = {https://pubmed.ncbi.nlm.nih.gov/12872621/},
  note = {Source identifier: 12872621}
}