@misc{indiciaeef28738a80cd,
  title = {Filtering operations in Africans.},
  author = {D Berson and H Zauberman and L Landau and M Blumenthal},
  year = {1969},
  doi = {10.1016/0002-9394(69)92054-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/5774255/},
  note = {Source identifier: 5774255}
}