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: Methotrexate-induced pneumonitis in patients with rheumatoid arthritis and psoriatic arthritis: report of five cases and review of the literature.

A: adverse drug event
****
Q: Cefoxitin therapy for Mycobacterium fortuitum bacteremia with associated granulomatous hepatitis.

A: adverse drug event
****
Q: Brain abscess following insertion of skull traction.

A:
non-adverse drug event
****
