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Frequency of Leisure-Time Physical Activity and Serum 25-Hydroxyvitamin D Levels in the US Population : Results from the Third National Health and Nutrition Examination Survey. Commentary. Authors'reply.

SCRAGG (Robert) : NZL. School of Population Health. University of Auckland. Auckland. ; BIRRELL (Fraser) / disc. : GBR. Department of Rheumatology. Northumbria Healthcare National Health Service Foundation Trust. Newcastle upon Tyne. ; CAMARGO (Carlos-Ajr) : USA. Massachusetts General Hospital. Harvard Medical School. Boston. MA. ; Roger-M FRANCIS, disc. ; Musculoskeletal Research Group. Newcastle University. Newcastle upon Tyne. GBR ; Musculoskeletal Unit. Freeman Hospital. Newcastle upon Tyne. GBR |

Dans American journal of epidemiology (vol. 168, n° 6, 2008)

[BDSP. Notice produite par INIST-CNRS G9R0xGt8. Diffusion soumise à autorisation]. The decline in vitamin D status among older people is probably due to decreased synthesis of vitamin D by sun-exposed skin and/or decreased outdoor activity. The [...]

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