2Garcia-Carrasco M,Ramos-Casals M,Rosas J,et al.Primary Sjogren's syndrome:clinical and immunologic disease patterns in a cohort of 400 patients.Medicine(Baltimore),2002,81(4):270-280.
3Martinoli C,Pretolesi F,Del Bono,et al.Benign lymphoepithelial parotid lesions in HIV-positive patients:spectrum of findings at gray-scale and Doppler sonography.AJR Am J Roentqeno,1995,165(4):975-979.
