2487
METHOD : Medically healthy 7 - to 17 - year - old males chronically treated , in a naturalistic setting , with risperidone were recruited for this cross - sectional study through child psychiatry outpatient clinics between November 2005 and June 2007 .
 Chemical: risperidone
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: risperidone