External validation of EPICON: a grouping system for estimating morbidity rates from electronic medical records.

Biermans, M.C.J., Elbers, G.H., Verheij, R.A., Veen, W.J. van der, Zielhuis, G.A., Vries Robbé, P.F. de. External validation of EPICON: a grouping system for estimating morbidity rates from electronic medical records. Journal of the American Medical Informatics Association: 2008, 15(6), 770-775