5404
To investigate mutation origin and mutation - specific phenotypes due to BRCA1 , we constructed a haplotype of nine polymorphic markers within or immediately flanking the BRCA1 locus in a set of 61 breast / ovarian cancer families selected for having one of six recurrent BRCA1 mutations .
 breast / ovarian cancer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 breast / ovarian cancer