Urinary Elimination of Coproporphyrins Is Dependent on ABCC2 Polymorphisms and Represents a Potential Biomarker of MRP2 Activity in Humans
Figure 3
Mean UCP I/(I + III) ratio determined for morning and 24-hour urine samples (Bland and Altman plot). The black circle represents the subject with highly discordant UCP I/(I + III) ratio values between morning and 24-hour urine samples.