RT Journal Article SR Electronic T1 Dr. Ludvigsson, et al reply JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1619 OP 1619 DO 10.3899/jrheum.130623 VO 40 IS 9 A1 JONAS F. LUDVIGSSON A1 ALBERTO RUBIO-TAPIA A1 VAIDEHI CHOWDHARY A1 JOSEPH A. MURRAY A1 JULIA F. SIMARD YR 2013 UL http://www.jrheum.org/content/40/9/1619.2.abstract AB