19973
Here , we examined the potential of [ ( 18 ) F ] FDG - PET as an imaging biomarker of neurotoxicity induced by an NMDA receptor antagonist , MK - 801 .
 [ ( 18 ) F ] FDG, NMDA, MK - 801
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 [ ( 18 ) F ] FDG, NMDA, MK - 801