@misc{10246,
  author = {J. Lewis and C. Brensinger and W. Bilker and B. Strom},
  title = {Validity and completeness of the General Practice Research Database for studies of inflammatory bowel disease},
  year = {2002},
  journal = {Pharmacoepidemiol Drug Saf},
  volume = {11},
  number = {3},
  pages = {211-8},
  issn = {1053-8569 (Print) 1053-8569},
  doi = {10.1002/pds.698},
}