The effect of a kindergarten-based, family-involved intervention on objectively measured physical activity in Belgian preschool boys and girls of high and low SES: the ToyBox-study

Marieke De Craemer, Ellen De Decker, Maïté Verloigne, Ilse De Bourdeaudhuij, Yannis Manios, Greet Cardon, on behalf of the ToyBox-study group
International Journal of Behavioral Nutrition and Physical Activity 2014, 11:38 (14 March 2014)