@misc{indiciae53e2eea26329,
  title = {Biochemical differences between amniotic fluid and maternal urine.},
  author = {G Mitchell and B Field and C Kerr},
  year = {1977},
  doi = {10.1136/bmj.1.6064.811-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/66963/},
  note = {Source identifier: 66963}
}