Capturing what's missing: A comprehensive protocol to monitor changes in the food and physical activity environment for studying their impact on childhood obesity
Michelle Kennedy, MPH, MCHES1, Michael Yedidia, PhD2 and Punam Ohri-Vachaspati, PhD, RD3
(1)Rutgers University, New Brunswick, NJ, (2)Rutgers University, New Brunwick, NJ, (3)Arizona State University, Phoenix, AZ
(1)Rutgers University, New Brunswick, NJ, (2)Rutgers University, New Brunwick, NJ, (3)Arizona State University, Phoenix, AZ