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Relation between the UGT2B17 genotype and the urinary excretion of testosterone (A), epitestosterone (B) and the testosterone : epitestosterone (T : E) ratio (C) in Swedish and Korean healthy subjects from Jakobsson et al. [23] and Schulze et al. [18]. The number of indivuduals were 65 del/del, 75 ins/del, and 63 ins/ins where del/del represents subjects devoid of the enzyme
