7704
Its overall toxicity is considerably less compared to standard induction chemotherapy ; however , it is associated with a high incidence of a potentially fatal symptom complex referred to as " retinoic acid syndrome . " This report describes a patient with APL who developed the syndrome a few weeks after initiating induction therapy with ATRA despite being treated for hyperleukocytosis .
 potentially fatal symptom, retinoic acid; retinoic acid syndrome, retinoic acid; toxicity, retinoic acid
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:
 potentially fatal symptom, retinoic acid; retinoic acid syndrome, retinoic acid; toxicity, retinoic acid