RT Journal Article SR Electronic T1 Headache—A Common Symptom in Thrombosis of the Internal Carotid Artery JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 25 OP 27 VO 27 IS 1 A1 Proudfit, William L. YR 1960 UL http://www.ccjm.org/content/27/1/25.abstract AB