@misc{indiciaeadf4157661a4,
  title = {Letter: Another method for changing U. A. catheters.},
  author = {D R Chopra and J Flanagan and J Obak and J Sinnhuber and J Kieffer and A Seay},
  year = {1974},
  url = {https://pubmed.ncbi.nlm.nih.gov/4414117/},
  note = {Source identifier: 4414117}
}