Adverse drug reactions are appreciably harmful or unpleasant reactions resulting from an intervention related to the use of medical products, which predicts hazard from future administration and warrants prevention or specific treatment, or alteration of the dosage regimen, or withdrawal of the product. Given medical case reports extracted from MEDLINE, the task is to classify whether the case report mentions the presence of any adverse drug reaction. Classify your answers into non-adverse drug event and adverse drug event.

Example Input: Myoclonus and seizures in a patient with parkinsonism: induction by levodopa and its confirmation on SEPs.
Example Output: adverse drug event

Example Input: One patient who received clindamycin had liver biopsy findings of marked cholestasis, portal inflammation, bile duct injury and bile duct paucity (ductopenia).
Example Output: adverse drug event

Example Input: This idea should be revised because functional imaging showed that this RLS patient had no dopamine depletion.
Example Output:
non-adverse drug event