@misc{indiciaec5bcdea1c11e,
  title = {An improved dimethylaminobenzaldehyde procedure for determining urea.},
  author = {L G Morin and J Prox},
  year = {1973},
  doi = {10.1016/0009-8981(73)90054-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4747800/},
  note = {Source identifier: 4747800}
}