@misc{indiciaeaf0660279a9b,
  title = {Changes in twin frequencies.},
  author = {N McARTHUR},
  year = {1954},
  doi = {10.1017/s1120962300021466},
  url = {https://pubmed.ncbi.nlm.nih.gov/13113857/},
  note = {Source identifier: 13113857}
}