@misc{indiciae0fb8fbd82c1c,
  title = {Placental localization using 51Cr tagged erythrocytes.},
  author = {J Crossley and M G Elder and K M Muir},
  year = {1968},
  doi = {10.1111/j.1471-0528.1968.tb00147.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5647708/},
  note = {Source identifier: 5647708}
}