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20110126 - East Boston, Mass. - Friedman School of Nutrition student Dan Hatfield (N11) does some wall squats with 6th graders at the Mario Umana Middle School Academy in East Boston on Jan. 26, 2011. The group of boys, who were all inactive to varying degrees, are now exercising regularly and have since set a goal to run a collective Boston Marathon several times by the end of the year thanks to Hatfield's class and afterschool program....(Kelvin Ma/Tufts University)
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