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Associated Press
In this Tuesday, Dec. 11, 2012 photo, Zendi Solano, third from left, trains with her running club in Pasadena, Calif. Kaiser Permanente, one of the nation's largest nonprofit health insurance plans, made a big push a few years ago to get its southern California doctors to ask patients about exercise. Since then, Kaiser has expanded the program across California and to several other states. Now almost 9 million patients are asked at every visit, and some other medical systems are doing it, too. (AP Photo/Mark J. Terrill)

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