1. Department of Oncology Nganda Hospital Center Kinshasa Democratic Republic of the Congo
2. Department of Research Institut Supérieur des Techniques Médicales de Lubumbashi Lubumbashi Democratic Republic of the Congo
3. Department of Pathology Kinshasa University Clinics, University of Kinshsa Kinshasa Democratic Republic of the Congo
4. School of Public Health University of Kinshasa Kinshasa Democratic Republic of the Congo