Correction to: Clinical Value of Using Heart Rate Variability Biofeedback Before Elective CT Coronary Angiography to Reduce Heart Rate and the Need for BetaBlockers

Affiliations

• ¹ Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany. Patrick.Langguth@uksh.de.
• ² Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany.
• ³ Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany.
• ⁴ Department for Internal Medicine III, Molecular Cardiology and Angiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany.