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: Effects of acetylsalicylic acid , dipyridamole , and hydrocortisone on epinephrine - induced myocardial injury in dogs .
### Output Text:
Effects of <span class="chemical">acetylsalicylic acid</span> , <span class="chemical">dipyridamole</span> , and <span class="chemical">hydrocortisone</span> on <span class="chemical">epinephrine</span> - induced myocardial injury in dogs . 