@misc{indiciae5b3626c2cd6f,
  title = {And now there are six.},
  author = {R Metzger},
  year = {1968},
  doi = {10.1016/s0001-2092(08)70144-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4877451/},
  note = {Source identifier: 4877451}
}