| S E Bleeker External validation is necessary in prediction research: a clinical exampleS E Bleeker Erasmus Medical Center Sophia Children s Hospital Department of Pediatrics, Room Sp 1545 Dr Molewaterplein 60, 3015 GJ Rotterdam, The Netherlands J Clin Epidemiol 56:826-32. 2003 Relation between regional and global systolic function in patients with ischemic cardiomyopathy after beta-blocker therapy or revascularizationT A M Kaandorp Department of Radiology, Leiden University Medical Center, The Netherlands J Cardiovasc Magn Reson 12:7. 2010 [Young child with fever of unknown origin in the 'post Haemophilus influenzae era']S E Bleeker Academisch Ziekenhuis Rotterdam Sophia Kinderziekenhuis, polikliniek Algemene Kindergeneeskunde, Dr Molewaterplein 60, 3015 GJ Rotterdam Ned Tijdschr Geneeskd 146:3-5. 2002 Validating and updating a prediction rule for serious bacterial infection in patients with fever without sourceS E Bleeker Erasmus Medical Center Sophia, Department of Paediatrics, Rotterdam, The Netherlands Acta Paediatr 96:100-4. 2007
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