Atypical advanced interatrial block due to giant atrial lipoma. Issue 4 (17th March 2021) - Gentille‐Lorente, Delicia Inés; Scott, Laura; Escobar‐Robledo, Luis Alberto; Mesa‐Maya, María Antonia; Carreras‐Costa, Francesc; Baranchuk, Adrian; Martínez‐Sellés, Manuel; Elosua, Roberto; Bayés‐Genís, Antoni; Bayés‐de‐Luna, Antoni