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Thirty - five patients ( 13 . 4 % ) had visual field abnormalities , which were attributed to hydroxychloroquine treatment in 4 patients ( 1 . 5 % ) .
 Disease: visual field abnormalities; Chemical: hydroxychloroquine
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 field abnormalities; Chemical: hydroxychloroquine