title: Foreword.
authors.affiliation: Sparrow Thoracic and Cardiovascular Institute, Michigan State University, 1200 East Michigan Avenue, Suite 580, Lansing, MI 48912, USA. Electronic address: thakur@msu.edu.
authors.forename: Ranjan K
authors.initials: RK
authors.lastname: Thakur
authors.affiliation: Texas Cardiac Arrhythmia Institute, at St. David's Medical Center, 3000 North I-35, Suite 720, Austin, TX 78705, USA. Electronic address: dr.natale@gmail.com.
authors.forename: Andrea
authors.initials: A
authors.lastname: Natale
mesh_terms: D001145:Arrhythmias, Cardiac / Q000503:physiopathology; D002036:Bundle of His / Q000502:physiology / Q000503:physiopathology; D054849:Cardiac Electrophysiology; D006801:Humans; D011690:Purkinje Fibers / Q000502:physiology / Q000503:physiopathology