1. Department of Paediatrics, University Teaching Hospital, Lusaka, School of Medicine, University of Zambia, Lusaka, Lusaka
2. School of Medicine, University of Zambia, Lusaka, Lusaka
3. Pendleton Family Practice, Lusaka, Zambia, Lusaka
4. Department of Paediatrics, University Teaching Hospital, Lusaka, School of Medicine, University of Zambia, Lusaka