Definition: Given an abstract, generate a keyword (a noun phrase) that best describes the focus or contribution of the paper. Such keywords can be directly from the given abstract or outside it.
Input: Abstract: An 87-year-old woman presented with the nephrotic syndrome 12 months after administration of ketoprofen, 100 mg daily for osteoarthritis. Clinical course and laboratory data were consistent with drug-induced nephropathy. Kidney biopsy showed membranous glomerulonephritis. Evolution was favorable with resolution of proteinuria after drug withdrawal and steroid administration. A review of the literature on nephrotic syndrome associated with NSAID reveals membranous glomerulonephritis to be an unusual complication.

Osteoarthritis