1. Care of the Elderly Medicine, Altnagelvin Hospital; Western Health and Social Care Trust; Londonderry; UK
2. South West Acute Hospital; Western Health and Social Care Trust; Enniskillen; UK
3. Royal Victoria Hospital; Belfast Health and Social Care Trust; Belfast; UK
4. Centre for Public Health, School of Medicine Dentistry and Biomedical Sciences; The Queen's University of Belfast; Belfast; UK