Additive prognostic value of interleukin-6 at peak phase of dobutamine stress echocardiography in patients with coronary artery disease. A 6-year follow-up study. by Ikonomidis, I, Athanassopoulos, G, Stamatelopoulos, K, Lekakis, J, Revela, I, Venetsanou, K, Marinou, M, Monaco, C, Cokkinos, D, Nihoyannopoulos, P