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: By electrophysiological tests and magnetic resonance imaging it was determined that two patients had cerebral ALD , one had adrenomyeloneuropathy with cerebral involvement , and two had preclinical AMN .
### Output Text:
By electrophysiological tests and magnetic resonance imaging it was determined that two patients had <span class="disease">cerebral ALD</span> , one had <span class="disease">adrenomyeloneuropathy</span> with cerebral involvement , and two had preclinical <span class="disease">AMN</span> . 