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Our results show that PARP - 1 inhibitors suppress the formation of poly ( ADP - ribose ) and enhance the cytotoxicity of cisplatin .
 Chemical: poly ( ADP - ribose ); Chemical: cisplatin
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: poly ( ADP - ribose ); Chemical: cisplatin