In the sentence extracted from biomedical literature, identify all the disease entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="disease"> to denote a disease.

### Input Text: Founding BRCA1 mutations in hereditary breast and ovarian cancer in southern Sweden .
### Output Text:
Founding BRCA1 mutations in <span class="disease">hereditary breast and ovarian cancer</span> in southern Sweden . 