@misc{indiciaeb103c4b2f3f2,
  title = {[Central pain modulation: descending facilitatory system].},
  author = {M Zhuo and G F Gebhart},
  year = {1993},
  url = {https://pubmed.ncbi.nlm.nih.gov/8159995/},
  note = {Source identifier: 8159995}
}