Arrhythmic risk stratification in heart failure mid‐range ejection fraction patients with a non‐invasive guiding to programmed ventricular stimulation two‐step approach oleh Petros Arsenos, Konstantinos A. Gatzoulis, Ioannis Doundoulakis, Polychronis Dilaveris, Christos‐Konstantinos Antoniou, Soulaidopoulos Stergios, Skevos Sideris, Sotiropoulos Ilias, Dimitrios Tousoulis