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Moreover , following treatment with gefitinib , the securin - wild type cancer cells were more resistant to apoptotic induction than the securin - null cancer cells .
 Chemical: gefitinib
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: gefitinib