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In 1952 , 17 years later at the age of 30 , Socarides graduated from Harvard College and received his certificate in Psychoanalytic Medicine from what is now the Columbia University Center for Psychoanalytic Training and Research .
 Socarides, Harvard College, Psychoanalytic Medicine, Psychoanalytic, Research
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Socarides, Harvard College, Psychoanalytic Medicine, Psychoanalytic, Research