820
On average , MA abusers had 7 . 8 % smaller hippocampal volumes than control subjects ( p < 0 . 01 ; left , p = 0 . 01 ; right , p < 0 . 05 ) and significant white - matter hypertrophy ( 7 . 0 % ; p < 0 . 01 ) .
 Chemical: MA; Disease: hypertrophy
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: MA; Disease: hypertrophy