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He threatened to resign in February 1943 , but was talked out of it by the head of the Metallurgical Laboratory , Arthur Compton , who sent him on vacation instead .
 Metallurgical Laboratory, Arthur Compton
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Metallurgical Laboratory, Arthur Compton