9961
Retinopathy in hepatitis C patients due to combination therapy with pegylated interferon and ribavirin .
 Retinopathy, pegylated interferon; Retinopathy, ribavirin
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:
 Retinopathy, pegylated interferon; Retinopathy, ribavirin