Figure 1.

Sustained ACR20 response to treatment with tocilizumab. ACR, American College of Rheumatology. *P = 0.023, **P = 0.002, ^§P = 0.008, and ^†P = 0.043 versus placebo. Reprinted, with permission, from [18]. Copyright ^© 2002 American College of Rheumatology.