478
The mutations 4612del165 and 7883del5 were found in more than two unrelated families ; 44 % ( 7 of 16 ) of the mutant alleles had one of the two mutations .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 None