1. Department of Dermatology, University of Monastir, Fattouma Bourguiba University Hospital, Monastir, Tunisia
2. Department of Haematology, University of Manar, National Center of Bone Marrow Transplantation, Tunis, Tunisia
3. Department of Anatomopathology, University of Sousse, Farhat Hached Hospital, Sousse, Tunisia
4. Department of Anatomopathology, University of Manar, Salah Azaiz Hospital, Tunis, Tunisia