title: Pityriasis rubra pilaris - an historical approach.
mesh_terms: D003937:Diagnosis, Differential; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008010:Lichen Planus / Q000175:diagnosis; D008131:London; D010297:Paris; D010916:Pityriasis Rubra Pilaris / Q000175:diagnosis / Q000209:etiology / Q000266:history*