[1]
Gascón, M.B. et al. 2013. Assessing the Validity of a Physical Activity Questionnaire Developed for Parents of Preschool Children in Mexico. Journal of Health, Population and Nutrition. 30, 4 (Jan. 2013), 439–446. DOI:https://doi.org/10.3329/jhpn.v30i4.13327.