twenty in-patients with rheumatoid arthritis took part in a double-blind , crossover clinical trial to compare the effectiveness and tolerance of 400 mg indoprofen with 1000 mg aspirin each given 3-times a day for 1 week , with an interval of 2 days during which patients received an indistinguishable placebo .
C0003873
rheumatoid arthritis
C0004057
aspirin