Secondary Cardiac T-Cell Lymphoma Presenting with Syncope and Refractory Complete Atrioventricular Block: A Case Report - Sattarzadeh, Roya; Ghodsi, Saeed; Eslami, Masoud; Mollazadeh, Reza; Safaei Nodehi, Reza; Hosseini, Zahra (The Research in Heart Yield and Translational Medicine (RHYTHM), 2020)