3149
This case demonstrates the selective vulnerability of the anterior visual pathways and peripheral nerves to ethambutol toxicity .
 Chemical: ethambutol; Disease: toxicity
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: ethambutol; Disease: toxicity