Perceived versus observed implementation of local school wellness policies in the cafeteria
Erin Biehl, MSPH1, Susan M. Gross, PhD, MPH, RD2, Beth Marshall, DrPH3, David M. Paige, MD MPH4 and Kristin Mmari, DrPH, MA2
(1)Johns Hopkins Center for a Livable Future, Baltimore, MD, (2)Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, (3)Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (4)Johns Hopkins University, Baltimore, MD