 less than 00 ml/minute per 0.00 m^0^, the areas under the curve were 0.000 (00% CI, 0.000 to 0.000) for serum Cr, 0.000 (00% CI, 0.000 to 0.000) for serum cystatin C, and 0.000 (00% CI, 0.000 to 0.000) for serum B0M. 