@article{7899,
  author = {Gretchen Purcell Jackson and John L. Tarpley},
  title = {How long does it take to train a surgeon?},
  year = {2009},
  journal = {BMJ},
  volume = {339},
  pages = {b4260},
  month = {11/2009},
  issn = {1756-1833},
  doi = {10.1136/bmj.b4260},
  language = {eng},
}