@misc{9222,
  author = {D. Reeves and D. Springate and D. Ashcroft and R. Ryan and T. Doran and R. Morris and I. Olier and E. Kontopantelis},
  title = {Can analyses of electronic patient records be independently and externally validated? The effect of statins on the mortality of patients with ischaemic heart disease: a cohort study with nested case-control analysis},
  year = {2014},
  journal = {BMJ Open},
  volume = {4},
  number = {4},
  pages = {e004952},
  issn = {2044-6055 (Print) 2044-6055},
  doi = {10.1136/bmjopen-2014-004952},
}