Barbara Butcher

A new electrocardiogram marker to identify patients at low risk for ventricular tachyarrhythmias: sum magnitude of the absolute QRST integral.

Hugh Calkins, David D Spragg, Joseph E Marine, 2011, Journal of electrocardiology.

Protein Biomarkers Identify Patients Unlikely to Benefit From Primary Prevention Implantable Cardioverter Defibrillators: Findings From the Prospective Observational Study of Implantable Cardioverter Defibrillators (PROSE-ICD)

Yiyi Zhang, Timm Dickfeld, David D Spragg, 2014, Circulation. Arrhythmia and electrophysiology.

Clinical and serum-based markers are associated with death within 1 year of de novo implant in primary prevention ICD recipients.

Yiyi Zhang, Timm Dickfeld, Joseph E Marine, 2015, Heart rhythm.

Prospective Observational Study of Implantable Cardioverter‐Defibrillators in Primary Prevention of Sudden Cardiac Death: Study Design and Cohort Description

Yiyi Zhang, Timm Dickfeld, Kenneth A. Ellenbogen, 2013, Journal of the American Heart Association.