title: Comment on letters by T Wilkin, and D Boniface and J Wardle concerning school-based physical activity.
authors.forename: B
authors.initials: B
authors.lastname: Gutin
mesh_terms: D000293:Adolescent; D002648:Child; D015444:Exercise; D006801:Humans; D009765:Obesity / Q000517:prevention & control*; D012574:Schools