@misc{indiciae519f99698083,
  title = {Tripping over technology.},
  author = {M D Hagen and J P Kassirer and R I Kopelman},
  year = {1989},
  doi = {10.1080/21548331.1989.11703653},
  url = {https://pubmed.ncbi.nlm.nih.gov/2493013/},
  note = {Source identifier: 2493013}
}