20280
The availability of a large variety of specific blockers , which inhibit different K ( + ) currents , would help to elucidate their differences in physiological function .
 Chemical: K ( + )
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: K ( + )