@misc{indiciaeffa9a93bed0c,
  title = {Calculus disease in the upper urinary tract.},
  author = {E O Singh and R S Malek},
  year = {1982},
  doi = {10.1016/0037-198x(82)90033-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/7089593/},
  note = {Source identifier: 7089593}
}