1. Department of Internal Medicine-Geriatric Medicine, Hospital Universitario Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain
2. Faculty of Health Sciences, Universidad Europea de Canarias, 38300 La Orotava, Spain
3. Internal Medicine Department, Universidad de la Laguna, 38200 La Laguna, Spain
4. Department of Vascular Surgery, Hospital Universitario Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain
5. Medicine Faculty, Universidad de la Laguna, 38200 La Laguna, Spain
6. Fundación Canaria Instituto de Investigación Sanitaria de Canarias (FIISC), 35019 Las Palmas de Gran Canaria, Spain
7. Network for Research on Chronicity Primary Care and Health Promotion, 28029 Madrid, Spain