4775
We describe two patients with aspergillus arthritis of the knee joint following fludarabine - based non - myeloablative stem cell transplantation .
 adverse effect: aspergillus arthritis of the knee joint, fludarabine
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: adverse effect 
Text: {0} 
 Entity Pairs:  aspergillus arthritis of the knee joint, fludarabine 
Answer:
 adverse effect: aspergillus arthritis of the knee joint, fludarabine