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Therefore , we evaluated structural characteristics in five female obligate carriers of XLRP by using state - of - the - art non - invasive imaging methods , including adaptive optics ( AO ) scanning laser ophthalmoscopy ( SLO ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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