@misc{indiciaeb21f7124d34b,
  title = {Brain scanning--successes, limitations, and future developments.},
  author = {L L Heck and P B Hoffer and A Gottschalk},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/9015646/},
  note = {Source identifier: 9015646}
}