TASK DEFINITION: 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.
PROBLEM: Findings from biopsy specimens of skin and jejunum suggested a cell-mediated pathogenesis, and lymphoproliferative studies of the patient's mononuclear cells revealed a positive response to phenobarbital.

SOLUTION: non-adverse drug event

PROBLEM: The results of our investigation were inconclusive, but suggested that the endoscope could have been responsible for some of the cases.

SOLUTION: non-adverse drug event

PROBLEM: Hematologic evaluation disclosed pancytopenia: red blood cells 283 x 10(4)/mm3; white blood cells 700/mm3; and platelets 8000/mm3.

SOLUTION:
non-adverse drug event