1. School of Nursing and Midwifery, University of Newcastle, Callaghan, Australia
2. Central Coast Local Health District, Gosford, NSW 2250, Australia
3. School of Medicine and Public Health (Medicine), University of Newcastle, Callaghan, Australia
4. St. Vincent’s Hospital, Sydney, NSW, Australia
5. School of Information and Physical Sciences, University of Newcastle, Callaghan, Australia
6. Massey University, Palmerston North, New Zealand