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The authors’ reply:
  1. Dr A V Hernandez, Department of Quantitative Health Sciences/Wb4, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA; hernana1{at}
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Hernandez AV, Westerhout CM, Steyerberg EW, et al
The authors’ reply:

Publication history

  • First published September 21, 2007.
Online issue publication 
September 21, 2007

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