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From 1968 to 1973 he was a lecturer at Imperial College London , after which he moved to the Department of Applied Mathematics and Theoretical Physics ( DAMTP ) at the University of Cambridge .
 Imperial College London, University of Cambridge
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Imperial College London, University of Cambridge