RT Journal Article SR Electronic T1 Calendar JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 1623 OP 1624 DO 10.1212/WNL.0b013e3181a5de03 VO 72 IS 18 YR 2009 UL http://n.neurology.org/content/72/18/1623.abstract AB