@article{6656,
  title = {Correction},
  year = {2011},
  journal = {BMJ Qual Saf},
  volume = {22},
  chapter = {182.4-182},
  month = {07/2011},
  publisher = {BMJ},
  issn = {2044-5415},
  doi = {10.1136/bmjqs.2010.050211},
}