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In parallel , total RNA was extracted from samples of dissected heart and analyzed by Northern blot hybridization to determine the steady - state level of three RNA transcripts encoded by the COXII , COXIII , and COXIV genes .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 None