4145
The most common cause of this syndrome is an interaction between a monoamine oxidase inhibitor ( MAOI ) and a specific serotonin reuptake inhibitor .
 Chemical: serotonin
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: serotonin