1. Laboratory of Anatomy and Cytology, Hospital of Grand Yoff, 15 Rue Robert Brun, 3270, Dakar, Senegal
2. Laboratory of Pathological Anatomy and Cytology, Aristide Dantec Hospital, Avenue Pasteur, 3001 Dakar, Senegal
3. Department of Ophthalmology, Aristide Dantec Hospital, Avenue Pasteur, 3001 Dakar, Senegal
4. Oncology’s Pediatric Department, Aristide Dantec Hospital, Avenue Pasteur, 3001 Dakar, Senegal