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She earned her PhD in biochemistry from the University of Wisconsin–Madison in 1968 , working under Hector DeLuca on retinoid metabolism .
 organization: University of Wisconsin–Madison; person: Hector DeLuca
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: University of Wisconsin–Madison; person: Hector DeLuca