RT Journal Article SR Electronic T1 IgG4 Syndrome: Old Disease, New Perspective JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1369 OP 1370 DO 10.3899/jrheum.100383 VO 37 IS 7 A1 FRAGOULIS, GEORGE E. A1 MOUTSOPOULOS, HARALAMPOS M. YR 2010 UL http://www.jrheum.org/content/37/7/1369.abstract AB