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We describe the proportion of hereditary breast cancer explained by BRCA1 or BRCA2 in a sample of North American hereditary breast cancers and assess the evidence for additional susceptibility genes that may confer hereditary breast or ovarian cancer risk .
 Disease: hereditary breast cancer; Disease: hereditary breast cancers; Disease: hereditary breast or ovarian cancer
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: hereditary breast cancer; Disease: hereditary breast cancers; Disease: hereditary breast or ovarian cancer