1973
A subset of germline APC mutations results in an attenuated FAP ( AFAP ) phenotype , in which patients develop fewer tumors and develop them at an older age .
 APC, attenuated FAP, AFAP, tumors
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 APC, attenuated FAP, AFAP, tumors