Yelyzaveta Yehudina; Svitlana Trypilka; Olena Dyadyk. A Clinical Case of Eosinophilic Granulomatosis With Polyangiitis Manifestation With a Tumor in the Pericardium in Combination With High Titers of Serum Immunoglobulin G4. Archives of Rheumatology 2022, 37, 142-144.