INSUFFICIENCY OF THE VERTEBRAL-BASILAR ARTERIAL SYSTEM; WITH  SPECIAL REFERENCE TO OCULAR SYMPTOMS AND SIGNS.
D001488:Basilar Artery; D002561:Cerebrovascular Disorders; D005123:Eye; D005132:Eye Manifestations; D006257:Head; D006801:Humans; D014711:Vertebral Artery; D014785:Vision, Ocular
BASILAR ARTERY; CEREBROVASCULAR DISORDERS; EYE MANIFESTATIONS; VERTEBRAL ARTERY