Relationship of insulin levels to ankle-brachial index in hypertensive patients with metabolic syndrome - Vyssoulis, G; Tsakiris, A; Karpanou, E; Kyvelou, S-M; Kofinis, A; Adamopoulos, D; Tapinis, P; Cokkinos, D; Stefanadis, C. (JOURNAL OF HYPERTENSION, 2007)