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The U.S. Center for Disease Control reported that from 2001 – 2003 , an estimated 7,475 children ( 2,492 per year ) under the age of 15 were treated for automobile back-over incidents .
 Center for Disease Control
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Center for Disease Control