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: CONCLUSION : The results indicate that in an outpatient clinical setting monoHER may be administered shortly before DOX .
### Output Text:
CONCLUSION : The results indicate that in an outpatient clinical setting <span class="chemical">monoHER</span> may be administered shortly before <span class="chemical">DOX</span> . 