@misc{indiciae971d4f533dac,
  title = {Low-level counting methods for isotopic tracers.},
  author = {W H JOHNSTON},
  year = {1956},
  doi = {10.1126/science.124.3226.801},
  url = {https://pubmed.ncbi.nlm.nih.gov/13380395/},
  note = {Source identifier: 13380395}
}