1. Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town 7500, Western Cape, South Africa
2. Rehabilitation Services, Department of Health, Bhisho 5200, Eastern Cape, South Africa
3. Disabilities and Rehabilitation, Western Cape Department of Health, Cape Town 8000, Western Cape, South Africa
4. Western Cape Rehabilitation Centre, Western Cape Department of Health, Cape Town 7789, Western Cape, South Africa
5. Therapeutic and Rehabilitation Services, Limpopo Department of Health, Polokwane 0700, Limpopo, South Africa
6. Rehabilitation and Disability Services, Mpumalanga Department of Health, Nelspruit 1200, Mpumalanga, South Africa
7. Rehabilitation Service, Gauteng Department of Health, Pretoria 2001, Gauteng, South Africa
8. Sensory Functions, Disability and Rehabilitation Unit, Department for Noncommunicable Diseases, World Health Organization, 1211 Geneva 27, Switzerland