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Valproic acid ( VPA ) was given to 24 epileptic patients who were already being treated with other antiepileptic drugs .
 Chemical: Valproic acid; Chemical: VPA; Disease: epileptic
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: Valproic acid; Chemical: VPA; Disease: epileptic