@misc{10232,
  author = {C. Black and J. Kaye and H. Jick},
  title = {Relation of childhood gastrointestinal disorders to autism: nested case-control study using data from the UK General Practice Research Database},
  year = {2002},
  journal = {Bmj},
  volume = {325},
  number = {7361},
  pages = {419-21},
  issn = {0959-8138},
}