3305
This supports the previously described hypothesis that the large Northern Finnish choroideremia pedigrees , comprising a total of over 80 living patients representing more than a fifth of all TCD patients described worldwide , carry the same mutation .
 choroideremia, TCD
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 choroideremia, TCD