“…8, 0.11, 0.09, and 0.94, 0.04, 0.02 (Scordo et al, 2001), respectively. CYP2C9*13 was first discovered in Chinese Han population by Si et al (2004) and was reported to have a frequency of 0.02% in Chinese. Thereafter, a series of investigations into the catalytic activity of CYP2C9*13 in vivo and in vitro were subsequently performed using tolbutamide, diclofenac, and lornoxicam as the probing substrates (Guo et al, 2005a(Guo et al, , 2005b.…”