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Further , immunoprecipitation analysis revealed that EGFR interacts with Yes and Lyn in Ctx ( R ) clones , but not in cetuximab - sensitive ( Ctx ( S ) ) parental cells .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None