1. Fundación para la Investigación Biomédica del Hospital Universitario de Getafe Madrid Spain
2. Facultad de Medicina Universidad de las Américas Quito Ecuador
3. CIBERFES: CIBER (Centers of the Network of Biomedical Research) thematic area of Frailty and Healthy Ageing Instituto de Salud Carlos III Madrid Spain
4. Department of Internal Medicine and Gerontology Jagiellonian University Medical Collegium Medicum Cracow Poland
5. Diabetes Frail and King's College London UK
6. Hospital Centro Medicina dell'Invecchiamento Università Cattolica del Sacro Cuore Rome Italy
7. Gerontopole, Centre Hospitalier Universitaire de Toulouse Toulouse France
8. Preventive Medicine and Public Health School of Medicine Universidad Autónoma de Madrid Madrid Spain
9. Jefe de Servicio de Geriatría Hospital Universitario de Getafe Madrid Spain