Expression patterns of the selected P450 subfamilies during liver development: A, CYP1A; B, CYP2A; C, CYP2B; D, CYP2C; E, CYP2D; F, CYP2E; G, CYP2F; H, CYP3A; I, CYP4A; and J, CYP4F. Data are presented as mean FPKM ± S.E.M. of three individual samples.