title: To classify or to discern? That's the problem.
authors: Department of Clinical-Surgical Diagnostic and Pediatric Sciences, Dermatology Section, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
authors: G
authors: G
authors: Borroni
authors: C
authors: C
authors: Tomasini
authors: E
authors: E
authors: Berti
mesh_terms: D006801:Humans; D017445:Skin Diseases, Vascular / Q000145:classification / Q000175:diagnosis / Q000473:pathology*; D014657:Vasculitis / Q000145:classification / Q000175:diagnosis / Q000473:pathology*