4504
The limited number of epidemiologic studies of stroke and use of cocaine and / or amphetamine have been done in settings that serve mostly the poor and / or minorities .
 Disease: stroke; Chemical: cocaine; Chemical: amphetamine
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: stroke; Chemical: cocaine; Chemical: amphetamine