@misc{indiciae66c63e1bd7aa,
  title = {How many is too many?},
  author = {A J Ryan},
  year = {1979},
  doi = {10.1080/00325481.1979.11715212},
  url = {https://pubmed.ncbi.nlm.nih.gov/450829/},
  note = {Source identifier: 450829}
}