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.

Q: METHODS/RESULTS: This paper presents a new case of rifabutin uveitis and a review of the various published reports to date.

A: adverse drug event
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Q: Ischemic cholangitis caused by transcatheter hepatic arterial chemoembolization 10 months after resection of the extrahepatic bile duct.

A: non-adverse drug event
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Q: Late repeat restenosis was treated with a third (Taxus, Boston Scientific, Maple Grove, Minnesota, USA) stent that was deployed through the previously implanted stent struts.

A:
non-adverse drug event
****