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: All the mAbs recognised a 34 kDa protein in all tissues tested , though minor emerin - related bands were also detected in some tissues .
### Output Text:
All the mAbs recognised a 34 kDa protein in all tissues tested , though minor emerin - related bands were also detected in some tissues . 