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: We report in this work the molecular bases of C7D in two unrelated Japanese males .
### Output Text:
We report in this work the molecular bases of <span class="disease">C7D</span> in two unrelated Japanese males . 