RT Journal Article SR Electronic T1 The Value of Air Encephalography and Cerebral Arteriography in the Diagnose of Headache JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 394 OP 396 VO 20 IS 3 A1 Lovshin, Leonard L. A1 Foe, Adrian YR 1953 UL http://www.ccjm.org/content/20/3/394.abstract AB