RT Journal Article SR Electronic T1 The Systemic Juvenile Idiopathic Arthritis Cohort of the Childhood Arthritis and Rheumatology Research Alliance Registry: 2010–2013 JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1618 OP 1618 DO 10.3899/jrheum.150997.C1 VO 43 IS 8 YR 2016 UL http://www.jrheum.org/content/43/8/1618.3.abstract AB