@misc{indiciae9453af39c1ab,
  title = {Urea analysis with the ammonia electrode.},
  author = {J L Renfro and Y Patel},
  year = {1974},
  doi = {10.1152/jappl.1974.37.5.756},
  url = {https://pubmed.ncbi.nlm.nih.gov/4548061/},
  note = {Source identifier: 4548061}
}