Towards an understanding of salient neighborhood boundaries: adolescent reports of an easy walking distance and convenient driving distance by Almeida Maria, Porter Dwayne E, Pfeiffer Karin A, Dowda Marsha, Colabianchi Natalie, Pate Russell R

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Influence of socio-economic status on habitual physical activity and sedentary behavior in 8- to 11-year old children by Heelan Kate, Welk Greg, Pfeiffer Karin A, Eisenmann Joey C, Drenowatz Clemens, Gentile Douglas, Walsh David

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The relationship between unsupervised time after school and physical activity in adolescent girls by Elder John P, Pfeiffer Karin A, Neumark-Sztainer Dianne, Davis CE, Voorhees Carolyn C, Rushovich Berenice R, Going Scott, Marino Vivian G

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(S)Partners for Heart Health: a school-based program for enhancing physical activity and nutrition to promote cardiovascular health in 5^thgrade students by Sehnert Scott T, Jager Kathleen B, Pfeiffer Karin A, Eisenmann Joey C, Carlson Joseph J, Yee Kimbo E, Klavinski Rita A, Feltz Deborah L

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