1. Centre for Postgraduate Nursing Studies, University of Otago, Christchurch, New Zealand;
2. Faculty of Nursing & Midwifery, Qazvin University of Medical Sciences, Qazvin, Iran;
3. School of Nursing & Midwifery, Edith Cowan University, Perth, Australia;
4. Centre for Health, Activity and Rehabilitation Research, School of Physiotherapy, University of Otago, Dunedin, New Zealand