RT Journal Article SR Electronic T1 More can be less JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 770 OP 771 DO 10.1212/WNL.0b013e318249f754 VO 78 IS 11 A1 Darras, Basil T. YR 2012 UL http://n.neurology.org/content/78/11/770.abstract AB