@article{pee07ext,
  title = {External Validation of Prognostic Models for Critically Ill Patients Required Substantial Sample Sizes},
  volume = {60},
  journal = {J Clin Epi},
  author = {Peek, N. and Arts, D. G. T. and Bosman, R. J. and {van der Voort}, P. H. J. and {de Keizer}, N. F.},
  year = {2007},
  keywords = {sample-size,validation,apache-ii,mortality-models,mpm-ii,prognostic-models,saps-ii},
  pages = {491-501},
  citeulike-article-id = {13265575},
  posted-at = {2014-07-14 14:09:59},
  priority = {0},
  annote = {large sample sizes need to obtain reliable external validations;inadequate power of DeLong, DeLong, and Clarke-Pearson test for differences in correlated ROC areas (p. 498);problem with tests of calibration accuracy having too much power for large sample sizes}
}

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