Re: "cardiorespiratory fitness levels among us adults 20-49 years of age: Findings from the 1999-2004 national health and nutrition examination survey"
- Ortega, F.B.
- Artero, E.G.
ISSN: 0002-9262, 1476-6256
Year of publication: 2010
Volume: 171
Issue: 12
Pages: 1323-1324
Type: Letter