@misc{9617,
  author = {D. Humes and K. Fleming and R. Spiller and J. West},
  title = {Concurrent drug use and the risk of perforated colonic diverticular disease: a population-based case-control study},
  year = {2011},
  journal = {Gut},
  volume = {60},
  number = {2},
  pages = {219-24},
  issn = {0017-5749},
  doi = {10.1136/gut.2010.217281},
}