@misc{indiciae4c814cf829dd,
  title = {A longitudinal study comparing apically repositioned flaps, with and without osseous surgery.},
  author = {C T Olsen and W F Ammons and G van Belle},
  year = {1985},
  url = {https://pubmed.ncbi.nlm.nih.gov/3864760/},
  note = {Source identifier: 3864760}
}