@misc{indiciae8bbde92a2abe,
  title = {The struggle to concentrate.},
  author = {W S Appleton},
  year = {1969},
  doi = {10.1176/ajp.126.2.256},
  url = {https://pubmed.ncbi.nlm.nih.gov/5804813/},
  note = {Source identifier: 5804813}
}