1106
The final mean visual acuity in group A ( 55 years of age or younger ) was 20 / 80 and significantly ( P = 0 . 006 ) better than that ( 20 / 138 ) in group B ( older than 55 years of age ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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