Concealed ventricular extrasystoles. A family of premature ventricular complexes with high spontaneous variability

Antonino Coglitore; Antonino Donato; Gaetano Satullo; Giuseppe Busà; Lucio Cavallaro; Rosario Grassi

Concealed ventricular extrasystoles. A family of premature ventricular complexes with high spontaneous variability