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: The use of rituximab has been uncommonly associated with delayed pulmonary toxicity.

A: adverse drug event
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Q: At postmortem examination, the characteristic microvascular lesions of the hemolytic-uremic syndrome were found in the kidneys.

A: non-adverse drug event
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Q: Cholelithiasis and thrombosis of the central retinal vein in a renal transplant recipient treated with cyclosporin.

A:
adverse drug event
****