1655
BRCA1 abnormalities were identified in all four families with ovarian cancer only , in 67 % of 27 families with both breast and ovarian cancer , and in 34 % of 35 families with breast cancer only .
 BRCA1 abnormalities, ovarian cancer, breast and ovarian cancer, breast cancer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 BRCA1 abnormalities, ovarian cancer, breast and ovarian cancer, breast cancer