title: Testing your diagnostic skills. Case No. 1: psoriasis.
authors.forename: Ron
authors.initials: R
authors.lastname: Baughman
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D009059:Mouth Diseases / Q000175:diagnosis*; D011565:Psoriasis / Q000175:diagnosis*