@misc{indiciaeaa76c5e2ade1,
  title = {Sub-specialization or super-specialization.},
  author = {T M Milward},
  year = {1991},
  doi = {10.1016/0007-1226(91)90031-e},
  url = {https://pubmed.ncbi.nlm.nih.gov/1954523/},
  note = {Source identifier: 1954523}
}