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Thirty male albino Wistar rats were randomized into three experimental groups as follows ; control ( C ) , sodium metabisulfite treated ( S ) , sodium metabisulfite + quinacrine treated ( SQ ) .
 sodium metabisulfite, sodium metabisulfite, quinacrine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 sodium metabisulfite, sodium metabisulfite, quinacrine