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Choroideremia ( CHM ) is an X - linked progressive degeneration of the choroid and retina .
 Choroideremia, CHM, X - linked progressive degeneration of the choroid and retina
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 Choroideremia, CHM, X - linked progressive degeneration of the choroid and retina