RT Journal Article SR Electronic T1 Moving on to second-line therapies in pediatric MS JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 2064 OP 2065 DO 10.1212/WNL.0b013e3181a92caa VO 72 IS 24 A1 Yeh, E. A. A1 Weinstock-Guttman, B. YR 2009 UL http://n.neurology.org/content/72/24/2064.abstract AB