1. Department of Nursing Sciences, School of Health Care Sciences, University of Pretoria, Gauteng, South Africa;
2. Department of Radiography, School of Health Care Sciences, University of Pretoria, Gauteng, South Africa;
3. Department of Occupational Therapy, School of Health Care Sciences, University of Pretoria, Gauteng, South Africa;
4. Department of Physiotherapy, School of Health Care Sciences, University of Pretoria, Gauteng, South Africa;
5. Department of Human Nutrition, School of Health Care Sciences, University of Pretoria, Gauteng, South Africa;
6. Division of Nursing, Queen Margaret University, Edinburgh, Scotland