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: However, a large case-control study included three cases of either Stevens-Johnson syndrome or toxic epidermal necrolysis associated with ofloxacin use, but no details of the cases were given.
Example Output: adverse drug event

Example Input: Clinicians should, therefore, consider AI in patients with spinal cord injury receiving glucocorticoids, a population in whom it may otherwise go undiagnosed and untreated.
Example Output: non-adverse drug event

Example Input: Along with normal results of a hepatorenal panel and normal serum vitamin B12 and folate levels, no metabolic or endocrinologic alterations were present to explain the nail pigmentation and dystrophic changes.
Example Output:
non-adverse drug event