Fig. 4

a Serum creatine kinase levels and b functional index (FI) in patients with polymyositis or dermatomyositis before and after immunosuppressive treatment. Results are expressed as μcat/L and percentage, respectively (mean ± SE)
a Serum creatine kinase levels and b functional index (FI) in patients with polymyositis or dermatomyositis before and after immunosuppressive treatment. Results are expressed as μcat/L and percentage, respectively (mean ± SE)