@misc{indiciae9a8c031d1c6b,
  title = {Peritoneal fluid urea nitrogen and creatinine reference values.},
  author = {K J Manahan and J Fanning},
  year = {1999},
  doi = {10.1016/s0029-7844(98)00516-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/10912986/},
  note = {Source identifier: 10912986}
}