Sleep Medicine
Volume 7, Issue 4 , Pages 319-326 , June 2006

The influence of age, gender, ethnicity, and insomnia on Epworth sleepiness scores: A normative US population

Received 10 September 2005 ,Revised 10 November 2005 ,Accepted 21 January 2006.

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PII: S1389-9457(06)00048-7

doi: 10.1016/j.sleep.2006.01.010

Sleep Medicine
Volume 7, Issue 4 , Pages 319-326 , June 2006