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In 1960 he was appointed as head of the new department of cell biology at the John Innes Institute , and in 1964 he succeeded Florey as Head of the Dunn School , and in 1979 he was appointed as Oxford 's Regius Professor of Medicine succeeding Sir Richard Doll .
 John Innes Institute, Florey, Oxford, Sir Richard Doll
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 John Innes Institute, Florey, Oxford, Sir Richard Doll