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: A stage Va B-cell multicentric lymphoma was diagnosed on clinical, cytological (lymph node, bone marrow), histological-immunohistochemical (lymph node excision) and imaging grounds.
Example Output: non-adverse drug event

Example Input: OBJECTIVE: To report a case of marked elevation of serum creatine kinase (CK) associated with olanzapine therapy.
Example Output: adverse drug event

Example Input: A complex pattern of melanonychia and onycholysis after treatment with pemetrexed for lung cancer.
Example Output:
adverse drug event