4100
Resting membrane potential , AP amplitude ( APA ) , AP duration at 50 % and 80 % of repolarization ( APD ( 50 ) and APD ( 80 ) , respectively ) , and the maximum rise and decay slopes of AP were recorded .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None