title: Reply to Wardle J et al. School-based physical activity and changes in adiposity.
authors.forename: T
authors.initials: T
authors.lastname: Wilkin
mesh_terms: D050154:Adiposity; D000293:Adolescent; D006801:Humans; D009043:Motor Activity; D009765:Obesity / Q000517:prevention & control*; D010806:Physical Education and Training; D013997:Time Factors