@article{be620ef298bc4ed786288d1d222af97e,
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",
abstract = "To conduct a fully independent and external validation of a research study based on one electronic health record database, using a different electronic database sampling the same population.",
author = "David Reeves and Springate, {David A} and Ashcroft, {Darren M} and Ronan Ryan and Timothy Doran and Richard Morris and Ivan Olier and Evangelos Kontopantelis",
year = "2014",
doi = "10.1136/bmjopen-2014-004952",
language = "English",
volume = "4",
journal = "BMJ Open",
issn = "2044-6055",
publisher = "BMJ Publishing Group",
number = "4",
}