1796
Amphetamine treatment significantly disrupted PPI in both non - deprived groups , but was absent in both maternally deprived groups .
 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:
 Chemical: Amphetamine