Hydroxylation of warfarin by human cDNA-expressed cytochrome P450 A role for P4502C9 in the etiology of (S)-warfarin drug interactions - Rettie, AE; Korzekwa, KR; Kunze, KL; Lawrence, RB; Eddy, AC; Aoyama, T; Gelboln, HV; Gonzalez, FJ; Trager, WF (Chem Res Toxicol, 1992)