1. Department of Internal Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaounde I, Yaoundé, Cameroon
2. Department of Internal Medicine, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
3. Department of Endocrinology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
4. Institute of Pathology and Genetics, Gosselies, Charleroi, Belgium
5. Department of Pathology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
6. Department of Hematology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium