Retraction Note: The efficacy and safety of cryoballoon catheter ablation in patients with paroxysmal atrial fibrillation

Affiliations

• ¹ Department of Interventional Cardiology and Arrhythmology, National Scientific Center of Surgery named after A.N. Syzganov, Almaty, Republic of Kazakhstan. baimbetov5584@kpi.com.de.
• ² Department of Health Policy and Organization, Al-Farabi Kazakh National University, Almaty, Republic of Kazakhstan.
• ³ Department of Clinical Specialties, Al-Farabi Kazakh National University, Almaty, Republic of Kazakhstan.
• ⁴ Department of Interventional Cardiology and Arrhythmology, National Scientific Center of Surgery named after A.N. Syzganov, Almaty, Republic of Kazakhstan.
• ⁵ Department of Epidemiology, Biostatistics and Evidence-Based Medicine, Al-Farabi Kazakh National University, Almaty, Republic of Kazakhstan.