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The use of cocaine and / or amphetamine is a strong risk factor for stroke in this socioeconomically heterogeneous , insured urban population .
 Chemical: cocaine; Chemical: amphetamine; Disease: stroke
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: stroke