@misc{indiciaef1a5b75aef07,
  title = {Birth order and PPS affiliation.},
  author = {L K Waters and W E Kirk},
  year = {1967},
  doi = {10.1080/00223980.1967.10544923},
  url = {https://pubmed.ncbi.nlm.nih.gov/6056826/},
  note = {Source identifier: 6056826}
}