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We characterize the clinical , neurophysiological , and neuroimaging findings in a 72 - year - old man who developed visual loss and paresthesias after 11 weeks of exposure to a supratherapeutic dose of ethambutol .
 Disease: visual loss; Disease: paresthesias; Chemical: ethambutol
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:
 Disease: visual loss; Disease: paresthesias; Chemical: ethambutol