@misc{indiciae12c5ca89cea3,
  title = {Valvular calcification in the elderly: possible pathogenic factors.},
  author = {A Pomerance and A J Darby and H M Hodkinson},
  year = {1978},
  doi = {10.1093/geronj/33.5.672},
  url = {https://pubmed.ncbi.nlm.nih.gov/299556/},
  note = {Source identifier: 299556}
}