@misc{indiciae72bfd175ef98,
  title = {Giant urethral calculus: a case report.},
  author = {H A de Carvalho},
  year = {1977},
  doi = {10.1016/s0022-5347(17)57998-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/561198/},
  note = {Source identifier: 561198}
}