Guetta, Victor Guetta, Victor Guevara, Ibeth Gugała, Kamil Guglin, Maya Guglin, Maya, Division of Cardiovascular Medicine, Linda and Jack Gill Heart Institute, University of Kentucky, Lexington, KY Guha, Santanu, Department of Cardiology, Calcutta Medical College & Hospital, Kolkata, India Guidetti, Federica Guillén, Marta Guimarães, Guilherme Veiga Guimarães, Guilherme Veiga Guimarães, Guilherme Veiga, Unidade Clínica de Insuficiencia Cardíaca e Transplante do Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da USP (InCor HC-FMUSP), Brazil Guimaraes, Guilherme Veiga Guinand, Alexandre Gul, Enes E., 1Department of Cardiology, Meram School of Medicine, Selcuk University, Konya, Turkey Gul, Enes Elvin Gül, İlker, Ahi Evren Chest Cardiovascular Surgery Education and Research Hospital Gul, Mehmet, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Education and Training Hospital, Department of Cardiology, Istanbul Gul, Mehmet, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Department of Cardiology, Istanbul Gula, Lorne J., Cardiology, Arrhythmia Service, London Health Sciences Centre, London, Ontario Gula, Lorne J. Gülbahar, Özlem Gülec, Hakan Gulec, Sadi, Cardiology Department, Ankara University Ankara Gulel, Okan