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Validity and reliability of a school travel survey.
Evenson KR, Neelon B, Ball SC, Vaughn A, Ward DS. Evenson KR, et al. Among authors: ward ds. J Phys Act Health. 2008;5 Suppl 1(Suppl 1):S1-15. doi: 10.1123/jpah.5.s1.s1. J Phys Act Health. 2008. PMID: 18364515 Free PMC article.
Active commuting and physical activity in adolescents from Europe: results from the HELENA study.
Chillón P, Ortega FB, Ruiz JR, De Bourdeaudhuij I, Martínez-Gómez D, Vicente-Rodriguez G, Widhalm K, Molnar D, Gottrand F, González-Gross M, Ward DS, Moreno LA, Castillo MJ, Sjöström M; HELENA study group. Chillón P, et al. Among authors: ward ds. Pediatr Exerc Sci. 2011 May;23(2):207-17. doi: 10.1123/pes.23.2.207. Pediatr Exerc Sci. 2011. PMID: 21633133
328 results