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To investigate the association between vitamin D levels, angiographic severity of coronary artery disease, arterial stiffness and degree of peripheral arterial disease (PAD) as assessed by ankle brachial index (ABI).375 patients undergoing coronary angiography from November 2012 to September 2013 were recruited. Serum 25-hydroxyvitamin D (25OHD) levels were measured as were ABI and pulse wave velocity...