@misc{indiciae55a3acf08169,
  title = {Circular mitral annulus calcification.},
  author = {D J Pounder},
  year = {1982},
  doi = {10.1259/0007-1285-55-651-250-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/7066632/},
  note = {Source identifier: 7066632}
}