8857
Chronic hydroxychloroquine use associated with QT prolongation and refractory ventricular arrhythmia .
 QT prolongation, hydroxychloroquine; refractory ventricular arrhythmia, hydroxychloroquine
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 QT prolongation, hydroxychloroquine; refractory ventricular arrhythmia, hydroxychloroquine