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These results suggested that exposure of nano - WC could influence some characteristics of APs evoked from the hippocampal CA1 neurons by modifying the kinetics of voltage - gated sodium channels ( VGSCs ) .
 Chemical: WC; Chemical: sodium
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: WC, sodium 
Answer:
 Chemical: WC; Chemical: sodium