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: Treatment with clentiazem prevented epinephrine - induced death ( P < . 05 ) , and attenuated the ventricular ischemic lesions and fibrosis , in a dose - dependent manner .
### Output Text:
Treatment with <span class="chemical">clentiazem</span> prevented <span class="chemical">epinephrine</span> - induced death ( P < . 05 ) , and attenuated the ventricular ischemic lesions and fibrosis , in a dose - dependent manner . 