PsoriasisDermatologic AgentsArthritis, PsoriaticPUVA TherapyUltraviolet TherapyCoal TarHLA-C AntigensAcitretinSkinAnthralinKeratolytic AgentsKeratinocytesSeverity of Illness IndexNail DiseasesClobetasolDermatologyEpidermisPhototherapyScalp DermatosesInterleukin-23Dermatitis, AtopicSkin DiseasesAdministration, TopicalTreatment Outcome