title: Henoch-Schönlein purpura.
mesh_terms: D000328:Adult; D002675:Child, Preschool; D005767:Gastrointestinal Diseases / Q000150:complications; D006801:Humans; D007223:Infant; D007674:Kidney Diseases / Q000150:complications; D009437:Neuralgia / Q000150:complications; D011693:Purpura / Q000175:diagnosis* / Q000209:etiology; D012216:Rheumatic Diseases / Q000150:complications