DOI: 10.1055/s-00034917

Kinder- und Jugendmedizin

References

Ruiz JR, Ortega FB, Martínez-Gómez D. et al.
HELENA Study Group. Objectively measured physical activity and sedentary time in European adolescents: the HELENA study.

Am J Epidemiol 2011;
174: 173-184.

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