(Q33843193)
Statements
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Trend in active transportation to school among Swiss school children and its associated factors: three cross-sectional surveys 1994, 2000 and 2005. (English)
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Charlotte Braun-Fahrländer
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Leticia Grize
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Bettina Bringolf-Isler
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Eva Martin
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15 April 2010
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28
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Identifiers
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