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A comparative analysis of the clinical manifestations recorded at diagnosis in the 22 patients with granulomatosis with polyangiitis (GPA) and ophthalmic involvement (red bars, group A), and in the 41 GPA patients without ophthalmic involvement (blue bars, group B). The differences between the two groups are not significant. The white numbers inside the bars indicate the number of patients, whereas the black numbers on top of each bar indicate the corresponding percentages
