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807 THE REPRODUCIBILITY AND VALIDITY OF A QUESTIONNAIRE TO ASSESS PAST-YEAR PHYSICAL ACTIVITY IN ADOLESCENTS
Aaron, D J, Kriska, A M, Metz, K E, Cauley, J A, LaPorte, R EVolume:
26
Journal:
Medicine & Science in Sports & Exercise
DOI:
10.1249/00005768-199405001-00809
Date:
May, 1994
File:
PDF, 136 KB
1994