1. Double blind cross-over trial comparing fenbufen and acetylsalicylic acid in rheumatoid arthritis;Anderson;Arzneimittelforschung,1980
2. A comparison of flurbiprofen and naproxen in the treatment of rheumatoid arthritis: a Canadian multi-centre study;Atkinson;Current Medical Research and Opinion,1990
3. The efficacy and tolerability of aceclofenac in the treatment of patients with ankylosing spondylitis: a multicenter controlled clinical trial. Aceclofenac Indomethacin Study Group;Batlle-Gualda;Journal of Rheumatology,1996
4. A multicenter study of tenoxicam and diclofenac in patients with osteoarthritis of the knee;Bellamy;Journal of Rheumatology,1993
5. A 12-week, double-blind, multicenter study comparing diflunisal twice daily and ibuprofen four times daily in the treatment of rheumatoid arthritis;Bennett;Clinical Therapeutics,1986