title: "ECG concealment" during left atrial flutter with 2:1 entrance block into the right atrium.
authors.affiliation: Emory University School of Medicine, Atlanta, Georgia, USA. daleyoo1@gmail.com
authors.forename: Dale
authors.initials: D
authors.lastname: Yoo
authors.forename: Shahriar
authors.initials: S
authors.lastname: Iravanian
authors.forename: Jonathan J
authors.initials: JJ
authors.lastname: Langberg
mesh_terms: D000368:Aged; D001282:Atrial Flutter / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000503:physiopathology; D006327:Heart Block / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans