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: Mutations at the 5 end of APC are known to be associated with a relatively mild form of the disease , called attenuated adenomatous polyposis coli ( AAPC ) .
### Output Text:
Mutations at the 5 end of <span class="disease">APC</span> are known to be associated with a relatively mild form of the disease , called <span class="disease">attenuated adenomatous polyposis coli</span> ( <span class="disease">AAPC</span> ) . 