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Click to increase image sizeClick to decrease image sizeKey words: exercisemotion sensorsphysical activity Additional informationNotes on contributorsKelly R. EvensonFunding for this study was provided by the National Institutes of Health: National Cancer Institute (R01 #CA109804-01), National Institute of Child Health and Human Development (#HD37584), and the National Institute of Diabetes and Digestive and Kidney Diseases (#DK 061981-02). The Pregnancy, Infection, and Nutrition Study is a joint effort of many investigators and staff members whose work is gratefully acknowledged. We would like to thank the anonymous reviewers, Leslie Bunce, and Jesse Metzger for their helpful comments on earlier drafts of the paper. Please address all correspondence concerning this article to Kelly R. Evenson, Bank of America Center, UNC Department of Epidemiology, 137 East Franklin Street Suite 306, Chapel Hill, NC 27514.
Evenson et al. (Mon,) studied this question.