@misc{indiciae0d248f155bb9,
  title = {Endodontics. The discoloration problem. An endodontic solution.},
  author = {M Abou-Rass},
  year = {1982},
  url = {https://pubmed.ncbi.nlm.nih.gov/6964503/},
  note = {Source identifier: 6964503}
}