Richardt, Gert, Heart Center Bad Segeberg Riera, Andrés Ricardo Pérez, Electro-Vectorcardiography of the Faculty of Medicine of ABC, São Paulo, Brazil Riera, Andrés Ricardo Pérez, For International VCG Investigators, ABC Faculty of Medicine (FMABC), Foundation of ABC (FUABC), Santo André, Brazil Riera, Andrés Ricardo Pérez, ABC Faculty of Medicine (FMABC), Foundation of ABC (FUABC), Santo André, Brazil Riera, Andrés Ricardo Pérez Riera, Andrés Ricardo Pérez, Electro-Vectorcardigraphic Section, ABC Medical School, ABC Foundation, Santo André, São Paulo, Brazil Riera, Andrés Ricardo Pérez, Electro-Vectocardiology Sector of the Discipline of Cardiology, ABC Faculty of Medicine (FMABC), Foundation of ABC (FUABC), Santo André, São Paulo, Brazil Riera, Andrés Ricardo Pérez, For International VCG Investigators; Electro-Vectorcardigraphic Section, ABC Faculty of Medicine (FMABC), Foundation of ABC (FUABC), Santo André, São Paulo, Brazil Riera, Andrés Ricardo Pérez, ABC Medical Faculty, ABC Foundation. Santo André, São Paulo. Brazil Rigatelli, Gianluca Rigatelli, Gianluca (Italy) Rillig, Andreas Rincón, Luis M. Rinelli, Gabriele, Pediatric Cardiology and Cardiac Surgery Department Bambino Gesù Children’s Hospital Rinelli, Gabriele Ríos-Rivera, José Rioufol, Gilles Rioufol, Gilles Risha, Osama Rissanen, Tuomas T. Riva, Stefania, Cardiac Arrhythmia Research Centre, Centro Cardiologico Monzino, IRCCS, Milan , Italy Rivas, Sonia Rivas-Gándara, Nuria, Hospital Universitario Vall d´Hebron, Universidad Autónoma de Barcelona Barcelona Rivera, Santiago, Centre Hospitalier Universitaire de Sherbrooke, Quebec, Canada Rivera-Leaños, Roxana