2456Functional behavior of heart failure with mid-range ejection fraction assessed by stress echocardiography and cardiopulmonary exercise test: truly distinctive phenotype o simply mid-way entity?. (28th August 2018) - Barletta, M; Bandera, F; Boveri, S; Losito, M; Alfonzetti, E; Labate, V; Caracciolo, M M; Rovida, M; Guazzi, M