Fig. 3From: Integrated analysis of clinical and genetic factors on the interindividual variation of warfarin anticoagulation efficacy in clinical practicePTTR varies with follow-up time in patients with different genotypes of VKORC1 -1639G > A and CYP2C9*3. 3A, VKORC1 -1639G > A polymorphism and PTTR change; 3B, CYP2C9*3 polymorphism and PTTR changeBack to article page