@article{11237,
  author = {D. Haas},
  title = {Sentinel events. In memory of Ben--a case study.},
  year = {1997},
  journal = {Jt Comm Perspect},
  volume = {17},
  pages = {12-5},
  month = {12/1997},
  issn = {1044-4017},
  language = {eng},
}