19968
[ 18F ] FDG - PET as an Imaging Biomarker to NMDA Receptor Antagonist - Induced Neurotoxicity .
 Chemical: [ 18F ] FDG; Chemical: NMDA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: [ 18F ] FDG, NMDA 
Answer:
 Chemical: [ 18F ] FDG; Chemical: NMDA