Ukonu, Bob A., and Perpetua U. Ibekwe. 2020. “Clinical and Economic Burden of Psoriasis: A Retrospective Study of the Cost Implications Among Cohorts in Abuja, Nigeria”. International Journal of Research in Dermatology 6 (4):443-49. https://doi.org/10.18203/issn.2455-4529.IntJResDermatol20202646.