1. Department of Internal Medicine, Nnamdi Azikiwe University/Nnamdi Azikiwe University Teaching Hospital , Nnewi , Nigeria
2. Department of Laboratory Medicine, School of Medicine and Allied Health Sciences, University of The Gambia/Edward Francis Small Teaching Hospital , Banjul , Gambia
3. Faculty of Medicine, Nnamdi Azikiwe University , Nnewi Campus , Nigeria
4. Institute of Dermatology, ‘Santa Maria della Misericordia’ University Hospital , Udine , Italy
5. Department of Dermatology, Medical University of Warsaw , Poland