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We have constructed a physical map of a 4 cM region on chromosome 17q12 - 21 that contains the hereditary breast and ovarian cancer gene BRCA1 .
 hereditary breast and ovarian cancer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 hereditary breast and ovarian cancer