1 Department of Internal Medicine, Edendale Hospital, School of Clinical Medicine (SCM), University of KwaZulu-Natal (UKZN), South Africa. Electronic address: [email protected].
2 Division of Internal Medicine, SCM, College of Health Sciences, UKZN, South Africa.
3 Mahatma Gandhi Memorial Hospital, Durban, South Africa.
4 Department of Orthopaedics, University of Witwatersrand, South Africa.
5 Division of Rheumatology, Faculty of Health Sciences, University of Cape Town, South Africa.
6 Division of Orthopaedics, Stellenbosch University, South Africa.
7 Division of Endocrinology, Stellenbosch University, South Africa.
8 Discipline of Public Health Medicine, SCM, College of Health Sciences, UKZN, South Africa.
9 Department of Geriatrics, SCM, College of Health Sciences, UKZN, South Africa.