RT Journal Article SR Electronic T1 Different degrees of right-to-left shunting predict migraine and stroke: Data from 420 patients JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 919 OP 920 DO 10.1212/01.wnl.0000239682.19745.e7 VO 67 IS 5 A1 Gilbert, Gordon J. YR 2006 UL http://n.neurology.org/content/67/5/919.3.abstract AB