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(a) Scatter graph shows the correlation between the Roche Cobas Integra 400 enzyme creatinine (Roche-E-Cr) and Toshiba Jaffe creatinine (Toshiba-J-Cr) methods (n = 163, r2 = 0.9352, p < 0.0001). (b) Bland-Altman plot shows agreement between the two methods (bias = −0.223 ± 0.06).
