@misc{indiciae670edea7e5b7,
  title = {Problematic ureteropelvic junction obstruction.},
  author = {S A Koff},
  year = {1987},
  doi = {10.1016/s0022-5347(17)43157-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/3599261/},
  note = {Source identifier: 3599261}
}