FIG 4 Plasmid detection limits for CYP2C19 * 2/3/17 polymorphisms. A. The detection limit of CYP2C19 * 2 heterozygosity is 1 copy/µl. B. The detection limit of CYP2C19 * 17 heterozygosity is 1 copy/µl. C. The detection limit of CYP2C19 * 3 heterozygosity is 1 copy/µl. D. The detection limit of CYP2C19 * 2/3/17 heterozygosity is 1 copies/µl. E. CYP2C19 * 2/3/17 heterozygous plasmid 10 copies/µl independent repeat 5 groups (n = 5). F. CYP2C19 * 2/3/17 heterozygous plasmid 1 copies/µl independently repeated 5 groups (n = 5). W, wild-type; M, mutant; W+M, heterozygosity. -dF/dt, negative derivative of fluorescence over temperature; NTC, negative control.