TY JOUR TI REFRACTORY COURSE OF THE NECROTIZING SCLERITIS IN A PATIENT WITH GRANULOMATOSIS AND POLYANGIITIS. CLINICAL CASE KW granulomatosis with polyangiitis KW antineutrophil cytoplasmic antibodies (ANCA) KW ANCA-associated vasculitis KW necrotizing scleritis KW refractory course JO Medical Bulletin of the Ministry of Internal Affairs AU V'YuN, O.G. AU URZhUMOVA, T.V. AU KON'KOV, A.V. PY 2025 IS 2025 PB State institution Joint editorial office of the Ministry of Internal Affairs of Russia