PsoriasisDermatologic AgentsArthritis, PsoriaticPUVA TherapyUltraviolet TherapyCoal TarHLA-C AntigensAcitretinSkinAnthralinKeratolytic AgentsKeratinocytesNail DiseasesClobetasolDermatologyEpidermisPhototherapySeverity of Illness IndexScalp DermatosesInterleukin-23Dermatitis, AtopicSkin DiseasesAdministration, Topical