1. Department of Geriatric Medicine, Northern Sydney Central Coast Area Health Service, Gosford Hospital, Gosford, NSW.
2. Sacred Heart Rehabilitation Service, St Vincent's Hospital, Sydney, NSW.
3. Ear, Nose and Throat Surgery, Sydney South‐West Area Health Service, Bankstown‐Lidcombe Hospital, Sydney, NSW.
4. Department of Aged Care and Rehabilitation, Sydney South‐West Area Health Service, Bankstown‐Lidcombe Hospital, Sydney, NSW.