In the sentence extracted from biomedical literature, identify all the chemical entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="chemical"> to denote a chemical.

### Input Text: It is concluded that solid evidence exists of hepatic injury due to amiodarone treatment , including steatosis , alterations resembling alcoholic hepatitis , cholestatic hepatitis and micronodular cirrhosis of the liver .
### Output Text:
It is concluded that solid evidence exists of hepatic injury due to <span class="chemical">amiodarone</span> treatment , including steatosis , alterations resembling alcoholic hepatitis , cholestatic hepatitis and micronodular cirrhosis of the liver . 