2603
Administered to healthy volunteers , a subanesthetic dose of the non - competitive NMDA receptor antagonist ketamine leads to psychopathological symptoms similar to those observed in schizophrenia .
 Chemical: NMDA; Chemical: ketamine; Disease: schizophrenia
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: NMDA; Chemical: ketamine; Disease: schizophrenia