Figure 1. A: Number of respondents per country.Although answers from several countries were received, the majority of
respondents were either from Colombia or Brazil. Most respondents were
electrophysiologists (B), with 70% having more than 10 years of
experience. Abbreviations: MX: Mexico; CO: Colombia; VE: Venezuela; BR:
Brazil; CL: Chile; AR; Argentina; UY: Uruguay.