Natural history and clinical significance of isolated complete left bundle branch block without associated structural heart disease - Hasan Ashraf; Pradyumna Agasthi; Robert J. Siegel; Sai Harika Pujari; Mohamed Allam; Win Kuang Shen; Komandoor Srivathsan; Dan Sorajja; Hicham El Masry; William K. Freeman; Farouk Mookadam; Siva Mulpuru; et al. (Anatolian Journal of Cardiology, 2021)