8128
Intravenous verapamil therapy in babies may cause apnea , hypotension , and bradycardia ; continued episodes of atrial flutter in a child may cause sudden death ; quinidine may be related to the death ; children with " familial seizure disorders " may in fact have the long QT interval syndrome .
 apnea, quinidine; apnea, verapamil; atrial flutter, verapamil; bradycardia, verapamil; death, quinidine; hypotension, verapamil; long QT interval syndrome, quinidine; sudden death, verapamil
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:
 apnea, quinidine; apnea, verapamil; atrial flutter, verapamil; bradycardia, verapamil; death, quinidine; hypotension, verapamil; long QT interval syndrome, quinidine; sudden death, verapamil