@misc{indiciae461dc291fc0f,
  title = {Threshold for conditioned suppression using x-rays as the pre-aversive stimulus.},
  author = {D D Morris},
  year = {1966},
  doi = {10.1901/jeab.1966.9-29},
  url = {https://pubmed.ncbi.nlm.nih.gov/5903956/},
  note = {Source identifier: 5903956}
}