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: None of these patients experienced a relapse of their PTLD with follow-up ranging from 1.5 to 5 years.

Output: non-adverse drug event


Input: Consider Input: We report a case of acute generalized exanthematous pustulosis (AGEP) induced by salazosulfapyridine in a patient with ulcerative colitis.

Output: adverse drug event


Input: Consider Input: Although fluoxetine-induced headache occurred in one patient, the other five reported no side effects at the doses used.


Output: adverse drug event