@misc{indiciae84c9c90e6e9b,
  title = {Pain in endodontic therapy: preliminary study.},
  author = {E M O'Keefe},
  year = {1976},
  doi = {10.1016/s0099-2399(76)80047-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/1068208/},
  note = {Source identifier: 1068208}
}