1. Department of Cardiology, Clermont‐Ferrand University Hospital Center, CNRS Clermont Auvergne University Clermont‐Ferrand France
2. Department of Cardiac Surgery Clermont‐Ferrand University Hospital Clermont‐Ferrand France
3. Biostatistics Unit (DRCI) Clermont‐Ferrand University Hospital Clermont‐Ferrand France