9220
CONCLUSION : During and after IFN therapy , OCT is a useful examination technique for revealing macular edema in patients who have decreased vision .
 adverse effect: decreased vision, IFN; adverse effect: macular edema, IFN
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: decreased vision, IFN; adverse effect: macular edema, IFN