@misc{indiciaeae7ea8104409,
  title = {Disability: a model and measurement technique.},
  author = {R G Williams and M Johnston and L A Willis and A E Bennett},
  year = {1976},
  doi = {10.1136/jech.30.2.71},
  url = {https://pubmed.ncbi.nlm.nih.gov/953379/},
  note = {Source identifier: 953379}
}