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The tempest beyond the test tube involves allegations that the U.S. Food and Drug Administration violated the Orphan Drug law by allowing Biogen the right to sell its multiple sclerosis drug Avonex .
 Biogen, Avonex, U.S. Food and Drug Administration, Orphan Drug law
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Biogen, Avonex, U.S. Food and Drug Administration, Orphan Drug law