@misc{indiciae38381fe96a1d,
  title = {Radioactive isotopes.},
  author = {J BLACK and M KENNEDY and S MACDONALD and J MACLEAN and V SKERRY},
  year = {1956},
  url = {https://pubmed.ncbi.nlm.nih.gov/13364851/},
  note = {Source identifier: 13364851}
}