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The cardiovascular score (CV) in PXE patients according to the MTHFR genotype (CC: C677C; CT: C677T and TT: T677T). Patients were divided into three age subgroups (before 30 years of age, between the age of 30 and 50 years, after the age of 50 years). Significant p values are indicated in the right panel as stars. *p < 0.05; **p < 0.01; ***p < 0.001.
