1. Barnsley Hospital; Barnsley UK
2. School of Social Sciences; Bangor University; Bangor UK
3. School of Education, Health and Social Studies; Dalarna University; Falun Sweden
4. Aging Research Center; Karolinska Institutet & Stockholm University; Stockholm Sweden
5. Institute of Health and Society; Newcastle University; Newcastle UK
6. Department of Clinical Sciences; Brunel University London; London UK