RT Journal Article SR Electronic T1 RISA cisternography JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 789 OP 789 DO 10.1212/WNL.22.8.789 VO 22 IS 8 A1 Bernard Messert A1 Michael J. Rieder YR 1972 UL http://n.neurology.org/content/22/8/789.abstract AB