title: Classification of vasculitis: comment on the review by Matteson.
authors.forename: U
authors.initials: U
authors.lastname: Mercado
mesh_terms: D003245:Consensus Statements as Topic; D003937:Diagnosis, Differential; D006801:Humans; D017410:Practice Guidelines as Topic; D009626:Terminology as Topic; D014657:Vasculitis / Q000145:classification* / Q000175:diagnosis*