721 Evidence for interplay between cytokines, macrophage colony stimulating factor and brain natriuretic peptide plasma levels changes during dobutamine stress echo irrespectively from test positivity - Athanassopoulos, G; Degiannis, D.; Ekonomides, I; Hatzigeorgiou, G; Marinou, M; Karatasakis, G; Lekakis, J.; Cokkinos, D.V. (European Journal of Echocardiography, 2003)