@misc{indiciae49d5eb94c2cf,
  title = {A precision method of counting radioactive liquid samples.},
  author = {A J FREEDMAN and D N HUME},
  year = {1950},
  doi = {10.1126/science.112.2912.461},
  url = {https://pubmed.ncbi.nlm.nih.gov/14781814/},
  note = {Source identifier: 14781814}
}