3715
Potassium ( K ) increment of 0 . 6 mEq / l or more was observed in 50 % of Group A , but in only 15 % of Group B patients ( p < 0 . 05 ) .
 Chemical: Potassium; Chemical: K
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: Potassium; Chemical: K