@misc{indiciae5a0b54ccd979,
  title = {Variations on a theme.},
  author = {D O'Brien},
  year = {2000},
  doi = {10.1053/pa.2000.6970},
  url = {https://pubmed.ncbi.nlm.nih.gov/11111522/},
  note = {Source identifier: 11111522}
}