14897
The current study investigated the visual fields and visual electrophysiology of eight patients with known vigabatrin - attributed visual field loss , three of whom were reported previously .
 adverse effect: visual field loss, vigabatrin
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:  visual field loss, vigabatrin 
Answer:
 adverse effect: visual field loss, vigabatrin