1. Department of Medicine, College of Health Sciences University of Abuja Abuja Nigeria
2. Urology Unit University of Abuja Teaching Hospital Abuja Nigeria
3. Dermatology Unit Federal Medical Center Abuja Nigeria
4. Dermatology Unit University of Abuja Teaching Hospital Abuja Nigeria
5. Pathology Department, College of Health Sciences University of Abuja Abuja Nigeria
6. Dermatology Unit, Department of Medicine, College of Health SCIENCES University of Abuja Abuja Nigeria