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: Adrenomyeloneuropathy ( AMN ) involves the spinal cord and peripheral nerves in young adults ( 35 % ) .
### Output Text:
<span class="disease">Adrenomyeloneuropathy</span> ( <span class="disease">AMN</span> ) involves the spinal cord and peripheral nerves in young adults ( 35 % ) . 