@misc{indiciaea6e797b9a581,
  title = {Prepatellar calcifications from repeated kneeling.},
  author = {M P Stevens and K E Sack},
  year = {1989},
  doi = {10.1056/nejm198907203210319},
  url = {https://pubmed.ncbi.nlm.nih.gov/2747758/},
  note = {Source identifier: 2747758}
}