The Atrioventricular Conduction Axis and its Implications for Permanent Pacing - José-Ángel Cabrera; Robert H Anderson; Andreu Porta-Sánchez; Yolanda Macías; Óscar Cano; Diane E Spicer; Damián Sánchez-Quintana (Arrhythmia & Electrophysiology Review, 2021)