@misc{indiciaed8db1309845a,
  title = {Use of general practitioner computerised records to create a population based twin sample: pilot study based on Parkinson's disease.},
  author = {C H Hawkes and A M Macdonald and A H Schapira},
  year = {1997},
  doi = {10.1136/bmj.315.7121.1510},
  url = {https://pubmed.ncbi.nlm.nih.gov/9420494/},
  note = {Source identifier: 9420494}
}