1. Departments of Cardiovascular Surgery, University Hospital of Liège, CHU du Sart-Tilman, Liège, Belgium.
2. Departments of Internal Medicine -division of Diabetes, Nutrition and Metabolic Diseases-, University Hospital of Liège, CHU du Sart-Tilman, Liège, Belgium.
3. Departments of Physiotherapy, University Hospital of Liège, CHU du Sart-Tilman, Liège, Belgium.