@misc{indiciaeb9cf693a9cb9,
  title = {Why give to strangers?},
  author = {R M Titmuss},
  year = {1971},
  doi = {10.1016/s0140-6736(71)90854-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4099615/},
  note = {Source identifier: 4099615}
}