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The left ventricular dysfunction was significantly lower in the groups treated with 25 and 50mg / kg of metformin .
 Disease: left ventricular dysfunction; Chemical: metformin
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:
 Disease: left ventricular dysfunction; Chemical: metformin