12646
Life - threatening alterations in heart rate after the use of adenosine in atrial flutter .
 adverse effect: alterations in heart rate, adenosine
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
 Entity Pairs:  alterations in heart rate, adenosine 
Answer:
 adverse effect: alterations in heart rate, adenosine