@misc{indiciae1a8252a741ac,
  title = {Nephrolithiasis.},
  author = {H E Williams},
  year = {1974},
  doi = {10.1056/nejm197401032900109},
  url = {https://pubmed.ncbi.nlm.nih.gov/4808499/},
  note = {Source identifier: 4808499}
}