2005
RESULTS : The positive c - kit protein expression and c - kit gene mutation rates were 97 . 6 % ( 80 / 82 ) and 41 . 5 % ( 34 / 82 ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 None