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4β‐OHC/C/W according to recipient CYP3A4 genotype. The CYP3A4*1 group includes 16 CYP3A5 expressors; the CYP3A4*1b group includes 12 CYP3A5 expressors. CYP3A5 genotype was not predictive of 4β‐OHC/C/W concentration after correction for CYP3A4 genotype (see text). 4β‐OHC/C/W, weight‐corrected 4β‐hydroxycholesterol/cholesterol
