The decline in active school transportation (AST): A systematic review of the factors related to AST and changes in school transport over time in North America

Rothman, Linda ; Macpherson, Alison K. ; Ross, Timothy ; Buliung, Ron N.

Preventive medicine, 2018-06, Vol.111, p.314-322 [Periódico revisado por pares]

United States: Elsevier Inc

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