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Reliability and validity of the Safe Routes to school parent and student surveys
Noreen C McDonald, Amanda E Dwelley, Tabitha S Combs, Kelly R Evenson, Richard H WintersVolume:
8
Language:
english
DOI:
10.1186/1479-5868-8-56
Date:
December, 2011
File:
PDF, 234 KB
english, 2011