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Six patients ( 3 . 6 % ) in the methadone group presented torsades de pointes .
 Chemical: methadone; Disease: torsades de pointes
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:
 Chemical: methadone; Disease: torsades de pointes