1. Author Affiliations: Department of Nursing, Faculty of Health Sciences, Chreso University, Lusaka, Zambia (P. Mbozi)
2. Department of Basic and Clinical Sciences, School of Nursing Sciences, University of Zambia, Lusaka, Zambia (P. K. Mukwato and V. M. Kalusopa)
3. Chreso University, Lusaka, Zambia (C. Simoonga).