@misc{indiciaeec170106eaf5,
  title = {Metabolic changes in bone in old age.},
  author = {L Pratelli and G Ravaglia and G Ciapetti and A Pizzoferrato},
  year = {1992},
  url = {https://pubmed.ncbi.nlm.nih.gov/1399540/},
  note = {Source identifier: 1399540}
}