Decuzzi, Marco Sialocintigraphy versus ultrasonography of the salivary glands in patients first diagnosed with Sjögren's syndrome. [electronic resource] - Hellenic journal of nuclear medicine - 103-5 p. digital Publication Type: Controlled Clinical Trial; Journal Article ISSN: 1790-5427 Subjects--Topical Terms: AdultAgedFemaleHumansMaleMiddle AgedPositron-Emission Tomography--methodsRadiopharmaceuticalsReproducibility of ResultsSalivary Gland Diseases--diagnostic imagingSalivary Glands--diagnostic imagingSensitivity and SpecificitySjogren's Syndrome--diagnostic imagingSodium Pertechnetate Tc 99mUltrasonography--methods