1955
RESULTS : A 2 . 0 - mg oral dose of trihexyphenidyl resulted in increased subjective ratings of mental slowness in carriers of the APOE epsilon4 allele only .
 Chemical: trihexyphenidyl; Disease: mental slowness
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: trihexyphenidyl; Disease: mental slowness