2667
Procainamide - induced incessant supraventricular tachycardia in the Wolff - Parkinson - White syndrome .
 incessant supraventricular tachycardia, Procainamide
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:
 incessant supraventricular tachycardia, Procainamide