Statement on cardiopulmonary exercise testing in chronic heart failure due to left ventricular dysfunction: recommendations for performance and interpretation. Part I: definition of cardiopulmonary exercise testing parameters for appropriate use in chroni
R. Belardinelli; P.G. Agostoni; A. Cohen-Solal; M.F. Piepoli; Prof. Dr. L.E.M.J. Vanhees (Lector); R. Hambrecht; U. Corra