4915
We report the case of a patient with chronic lymphocytic leukemia ( CLL ) who developed fatal intravascular autoimmune hemolytic anemia ( AIHA ) after fludarabine treatment .
 adverse effect: AIHA, fludarabine; adverse effect: fatal intravascular autoimmune hemolytic anemia, fludarabine
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 adverse effect: AIHA, fludarabine; adverse effect: fatal intravascular autoimmune hemolytic anemia, fludarabine