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In December 2006 , Sir Liam Donaldson , the Chief Medical Officer , wrote to GPs telling them that letters from patients requesting that their records should not be uploaded should be sent to Patricia Hewitt , the health secretary , for ' full consideration ' , causing consternation among privacy campaigners .
 Liam Donaldson, Medical, Patricia Hewitt
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Liam Donaldson, Medical, Patricia Hewitt