3993
By using the whole - cell patch - clamp configurations , we found ECG enhanced the slowly inactivating component of voltage - gated Na ( + ) currents ( I ( Na ) ) in a concentration - dependent manner ( 0 . 1 - 100 mu M ) with an EC ( 50 ) value of 3 . 8 mu M .
 Chemical: ECG; Chemical: Na ( + ); Chemical: Na
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: ECG; Chemical: Na ( + ); Chemical: Na