Affiliation: | 1. Department of Elderly Medicine, Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust, Crewe, UK;2. Assembly of Epidemiology and Biostatistics, Hellenic Society for the Advancement of Biomedical Research, Southport, UK;3. Department of General Medicine, Southport District General Hospital, Southport and Ormskirk NHS Foundation Trust, Southport, UK |