Who participates in a computer-tailored physical activity program delivered through the Internet? A comparison of participants' and non-participants' characteristics by Spittaels Heleen, De Bourdeaudhuij Ilse

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The perception of the neighborhood environment changes after participation in a pedometer based community intervention by Wallmann Birgit, Spittaels Heleen, De Bourdeaudhuij Ilse, Froboese Ingo

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Interventions for promoting physical activity among European teenagers: a systematic review by Lien Nanna, Spittaels Heleen, van Lenthe Frank J, De Meester Femke, De Bourdeaudhuij Ilse

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Assessment of environmental correlates of physical activity: development of a European questionnaire by Oja Pekka, Rutter Harry, Oppert Jean-Michel, Foster Charlie, Spittaels Heleen, Sjöström Michael, De Bourdeaudhuij Ilse

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Measuring physical activity-related environmental factors: reliability and predictive validity of the European environmental questionnaire ALPHA by Oppert Jean-Michel, Foster Charlie, Titze Sylvia, Gloanec Julien, Gidlow Christopher, Verloigne Maïté, Spittaels Heleen, Rutter Harry, Oja Pekka, Sjöström Michael, De Bourdeaudhuij Ilse

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