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The next step in health behavior research: the need for ecological moderation analyses - an application to diet and physical activity at childcare

Jessica S Gubbels, Dave HH Van Kann, Nanne K de Vries, Carel Thijs and Stef PJ Kremers*

International Journal of Behavioral Nutrition and Physical Activity 2014, 11:52  doi:10.1186/1479-5868-11-52