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.

Input: Consider Input: This is not a controlled study but an anecdotal experience that resulted in improved outcomes in a patient with multiple allergies, including iron dextran.

Output: non-adverse drug event


Input: Consider Input: Symptomatic air trapped in the spine after lumbar epidural corticosteroid injection.

Output: non-adverse drug event


Input: Consider Input: The immune tolerance in a 12-year-old haemophilia A patient was carried out at the Faculty of Medicine, Ramathibodi Hospital, Bangkok in 1998.


Output: non-adverse drug event