Bradley JD,Brandt KD,Katz BP,Kalasinski LA,Ryan SI. Comparison of an antiinflammatory dose of ibuprofen, an analgesic dose of ibuprofen, and Acetaminophen in the treatment of patients with osteoarthritis of the knee. N Engl J Med 1991;325(2):87-91.

PubMed ID: 2052056