Affiliation: | 1. Division of Gastrointestinal Surgery, Nottingham Digestive Diseases Centre National Institute for Health Research Biomedical Research Unit, Nottingham University Hospitals, Queen''s Medical Centre, Nottingham, UK;2. Department of Elderly Medicine, Nottingham University Hospitals, Queen''s Medical Centre, Nottingham, UK;3. School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK |