2996
Thoracoscopic biopsy to confirm metastasis revealed instead fibrotic lesions apparently attributable to bleomycin or cyclophosphamide .
 fibrotic lesions, bleomycin; fibrotic lesions, cyclophosphamide
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:
 fibrotic lesions, bleomycin; fibrotic lesions, cyclophosphamide