3041
Field potential duration ( FPD ) in human - induced pluripotent stem cell - derived cardiomyocytes ( hiPS - CMs ) , which can express QT interval in an electrocardiogram , is reported to be a useful tool to predict K ( + ) channel and Ca ( 2 + ) channel blocker effects on QT interval .
 Chemical: K; Chemical: Ca
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: K; Chemical: Ca