@misc{indiciaef1bd3e523355,
  title = {[Periodontology].},
  author = {I Speckman Borg and J Cárdenas Chagoya and J M Pérez},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3483434/},
  note = {Source identifier: 3483434}
}