@misc{indiciae521a2dac5a48,
  title = {A second example of Rh-null blood.},
  author = {P Levine and J W Chambers and M J Celano and F Falkowski and O B Hunter and C T English},
  year = {1965},
  url = {https://pubmed.ncbi.nlm.nih.gov/4956195/},
  note = {Source identifier: 4956195}
}