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The data from these studies served as a basis for FDA to provide a " Black Box " warning for the clopidogrel label in March of 2010 .
 Chemical: clopidogrel
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: clopidogrel