@article{17472,
  author = {Taylor Colman and  and Fitzharris M. and Middleton P. and Stevenson Mark and Jan Stephen},
  title = {A systematic review of the cost and benefit of helicopter emergency medical services},
  year = {2009},
  journal = {Injury},
  volume = {41},
  number = {1},
  pages = {10-20. },
  note = {AR10 - 2nd qtr},
  language = {eng},
}