Phosphatidylinositol 3-kinase delta pathway: a novel therapeutic target for Sjögren's syndrome by Nayar, S, Campos, J, Smith, CG, Iannizzotto, V, Gardner, DH, Colafrancesco, S, Pipi, E, Kollert, F, Hunter, KJ, Brewer, C, Buckley, CD, Bowman, SJ, Priori, R, Valesini, G, Juarez, M, Fahy, WA, Fisher, BA, Payne, A, Allen, RA, Barone, F