13683
Scrotal ulceration induced by all - trans retinoic acid in a patient with acute promyelocytic leukemia .
 Scrotal ulceration, 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:
 Scrotal ulceration, retinoic acid