ABSTRACT
OBJECTIVES: To validate the previously proposed classification criteria for Henoch-Schönlein purpura (HSP), childhood polyarteritis nodosa (c-PAN), c-Wegener granulomatosis (c-WG) and c-Takayasu arteritis (c-TA). METHODS: Step 1: retrospective/prospective web-data collection for children with HSP, c-PAN, c-WG and c-TA with age at diagnosis Subject(s)
Granulomatosis with Polyangiitis/classification
, IgA Vasculitis/classification
, Polyarteritis Nodosa/classification
, Takayasu Arteritis/classification
, Adolescent
, Child
, Epidemiologic Methods
, Granulomatosis with Polyangiitis/diagnosis
, Humans
, IgA Vasculitis/diagnosis
, International Cooperation
, Polyarteritis Nodosa/diagnosis
, Takayasu Arteritis/diagnosis
, Terminology as Topic
