@misc{indiciaea97184e25d3f,
  title = {Introversion and isolation tolerance.},
  author = {R D Francis},
  year = {1969},
  doi = {10.2466/pms.1969.28.2.534},
  url = {https://pubmed.ncbi.nlm.nih.gov/5803475/},
  note = {Source identifier: 5803475}
}