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Comment
. 2010 Jun 15;171(12):1323-4.
doi: 10.1093/aje/kwq145. Epub 2010 May 21.

Re: "Cardiorespiratory fitness levels among us adults 20-49 years of age: findings from the 1999-2004 National Health and Nutrition Examination Survey"

Francisco B Ortega, Enrique G Artero
Comment

Re: "Cardiorespiratory fitness levels among us adults 20-49 years of age: findings from the 1999-2004 National Health and Nutrition Examination Survey"

Francisco B Ortega et al. Am J Epidemiol. .
No abstract available

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