6352
Serotonin - glutamate and serotonin - dopamine reciprocal interactions as putative molecular targets for novel antipsychotic treatments : from receptor heterodimers to postsynaptic scaffolding and effector proteins .
 Serotonin, glutamate, serotonin, dopamine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Serotonin, glutamate, serotonin, dopamine