13121
Spectral - domain optical coherence tomography and adaptive optics may detect hydroxychloroquine retinal toxicity before symptomatic vision loss .
 adverse effect: retinal toxicity, hydroxychloroquine
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:  retinal toxicity, hydroxychloroquine 
Answer:
 adverse effect: retinal toxicity, hydroxychloroquine