1. School of Nursing, University of Auckland, Auckland, New Zealand
2. Auckland District Health Board, Auckland, New Zealand; School of Nursing, University of Auckland, Auckland, New Zealand
3. Waitemata District Health Board, Auckland, New Zealand; Freemasons’ Department of Geriatric Medicine, University of Auckland, Auckland, New Zealand; School of Nursing, University of Auckland, Auckland, New Zealand
4. Auckland District Health Board, Auckland, New Zealand; Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
5. School of Nursing and Midwifery, University of Sheffield, Sheffield, UK
6. Adult Health Service Group, Auckland District Health Board, Auckland, New Zealand; School of Medicine, University of Auckland, Auckland, New Zealand