Dr. Christine Hoang attends the Food Dialogues: New York on Thursday, Nov. 15, 2012 in New York. (Photo by Evan Agostini/Invision for USFRA/AP Images)

Associated Press
Dr. Christine Hoang attends the Food Dialogues: New York on Thursday, Nov. 15, 2012 in New York. (Photo by Evan Agostini/Invision for USFRA/AP Images)
Dr. Christine Hoang attends the Food Dialogues: New York on Thursday, Nov. 15, 2012 in New York. (Photo by Evan Agostini/Invision for USFRA/AP Images)
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