@misc{indiciaead52ef7b518d,
  title = {The serial sevens subtraction test.},
  author = {A Smith},
  year = {1967},
  doi = {10.1001/archneur.1967.00470250082008},
  url = {https://pubmed.ncbi.nlm.nih.gov/6026175/},
  note = {Source identifier: 6026175}
}