1. Department of Clinical Nursing, School of Nursing, University of Dodoma , 259 Dodoma , Tanzania
2. Department of Pathology, School of Medicine, Muhimbili University of Health and Allied Sciences , 65001, Dar es Salaam , Tanzania
3. Department of Obstetrics and Gynaecology, School of Medicine and Dentistry, University of Dodoma , 295 Dodoma , Tanzania