title: Combinations and comparisons.
authors.affiliation: Department of Dermatology, University Hospital Nijmegen, The Netherlands.
authors.forename: P C
authors.initials: PC
authors.lastname: van de Kerkhof
mesh_terms: D002986:Clinical Trials as Topic; D003131:Combined Modality Therapy; D004359:Drug Therapy, Combination; D006801:Humans; D011379:Prognosis; D011565:Psoriasis / Q000188:drug therapy / Q000628:therapy*