Resolution: standard / high
Figure 1.
Study design for the physical activity validation study. Study design for the European Prospective Investigation into Cancer and Nutrition (EPIC) physical activity questionnaire validation and repeatability study, Sydney, Australia, 2005–2006.
Cust et al. International Journal of Behavioral Nutrition and Physical Activity 2008 5:33 doi:10.1186/1479-5868-5-33
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