Open Access Research article

Reproducibility of physical activity recall over fifteen years: longitudinal evidence from the CARDIA study

Ashley Wilder Smith*, Kathleen A Cronin, Heather Bowles, Gordon Willis, David R Jacobs, Rachel Ballard-Barbash and Richard P Troiano

BMC Public Health 2013, 13:180  doi:10.1186/1471-2458-13-180

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