935
Median change in visual acuity both 6 and 12 months after the initial PDT was 0 lines ( n = 18 at 6 months , range - 14 to + 8 lines ; n = 17 at 12 months , range - 18 to + 7 lines ) .
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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:
 None