TY - JOUR T1 - Limited GPA and Alpha-1 Antitrypsin Deficiency in a Pediatric Patient JF - The Journal of Rheumatology JO - J Rheumatol DO - 10.3899/jrheum.180979 SP - jrheum.180979 AU - Elaine S. Xie AU - Nikhil Pai AU - Michelle Batthish Y1 - 2019/03/01 UR - http://www.jrheum.org/content/early/2019/02/25/jrheum.180979.abstract N2 - Granulomatosis with polyangiitis (GPA) is a rare systemic vasculitis affecting small to medium-sized blood vessels. The most frequent presenting symptoms are nonspecific constitutional symptoms, followed by pulmonary, renal, and upper respiratory tract symptoms1 ER -