Acute improvement of aortic mechanics following hemodialysis in patients with chronic renal failure. Dahkki Soubassi, L, Tousoulis, D, Antoniades, C, Lambrou, S, Aggeli, C, Chaniotis, D, Soubassi, S, Pitsavos, C, Stefanadis, C, Soubassis, P, Toutouzas, P