@misc{indiciaea5c86eaf0e62,
  title = {Passovoy factor.},
  author = {C Hougie and R A McPherson},
  year = {1975},
  doi = {10.1016/s0140-6736(75)80056-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/78194/},
  note = {Source identifier: 78194}
}