1. Department of Dermatology; University Hospital of Lille; Lille France
2. Acute Geriatric Medicine Department; University Hospital of Lille; Lille France
3. Vascular Ageing Biology; EA2693; Lille School of Medicine; Lille Medical University; Lille France
4. Modern Languages Department; École Centrale de Lille; Villeneuve d'Ascq France
5. Department of Biostatistics; EA2694; University Lille 2; Lille France