@misc{indiciaea250f5c86636,
  title = {Amniotic fluid creatinine.},
  author = {R M Pitkin and S J Zwirek},
  year = {1967},
  doi = {10.1016/0002-9378(67)90040-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4951898/},
  note = {Source identifier: 4951898}
}