9391
The interval between initiating treatment with interferon alfa and onset of anterior ischemic optic neuropathy was similar to that of interferon - associated vascular retinopathy .
 adverse effect: anterior ischemic optic neuropathy, interferon alfa; adverse effect: vascular retinopathy, interferon
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:  anterior ischemic optic neuropathy, interferon alfa; vascular retinopathy, interferon 
Answer:
 adverse effect: anterior ischemic optic neuropathy, interferon alfa; adverse effect: vascular retinopathy, interferon