@misc{indiciaeefb270884e79,
  title = {Eleven-year study of hydroxyapatite implants.},
  author = {R A Williams},
  year = {1990},
  doi = {10.1016/0022-3913(90)90247-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/2158557/},
  note = {Source identifier: 2158557}
}