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Figure 3 Changes of myocardial blood flow (MBF) during cold pressor testing (CPT) at baseline (CPT-1), after intravenous (i.v.) infusion of 3 g vitamin C (VC) (CPT-2), and after a period of three months (CPT-3) and two years (CPT-4) of 2 g VC tablets daily in smokers. #+¡p  0.001 compared with baseline (CPT-1) on repeated assessments of changes in MBF during CPT in smokers.
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