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Frederick King Goodwin ( born April 21 , 1936 ) is an American psychiatrist and Clinical Professor of Psychiatry at the George Washington University Medical Center , where he is also director of the Center on Neuroscience , Medical Progress , and Society .
 Frederick, Goodwin, Psychiatry, George Washington University Medical, Medical
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Frederick, Goodwin, Psychiatry, George Washington University Medical, Medical