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OBJECTIVE : The objective of this study was to determine the prevalence of positive plasma drug screening for cocaine or amphetamine in adult emergency department seizure patients .
 Chemical: cocaine; Chemical: amphetamine; Disease: seizure
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: cocaine; Chemical: amphetamine; Disease: seizure