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Ventricular arrhythmias were primarily observed in the C + E group , in which four of eight dogs experienced ventricular tachycardia .
 Disease: Ventricular arrhythmias; Disease: ventricular tachycardia
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: Ventricular arrhythmias; Disease: ventricular tachycardia