RT Journal Article SR Electronic T1 Idiopathic aqueductal stenosis JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 491 OP 491 DO 10.7861/clinmedicine.12-5-491 VO 12 IS 5 A1 Emma Deavin A1 Rajiv Madula A1 Paul Grant A1 Masud Haq YR 2012 UL http://www.rcpjournals.org/content/12/5/491.abstract