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: These results are compatible with the hypothesis that an hyperkinetic abnormal involuntary movement , like L - dopa - induced peak dose dyskinesia , is due to a disinhibition of the primary and associated motor cortex secondary to an excessive outflow of the pallidothalamocortical motor loop .
### Output Text:
These results are compatible with the hypothesis that an hyperkinetic abnormal involuntary movement , like <span class="chemical">L - dopa</span> - induced peak dose dyskinesia , is due to a disinhibition of the primary and associated motor cortex secondary to an excessive outflow of the pallidothalamocortical motor loop . 