[4 cases of occipital-vertebral anastomosis].
D000293:Adolescent; D000328:Adult; D002339:Carotid Arteries / Q000000981:diagnostic imaging*; D002404:Catheterization; D002533:Cerebral Angiography; D002547:Cerebral Palsy / Q000000981:diagnostic imaging; D002648:Child; D003097:Collateral Circulation; D006259:Craniocerebral Trauma / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008881:Migraine Disorders / Q000000981:diagnostic imaging; D010871:Pinealoma / Q000000981:diagnostic imaging; D014711:Vertebral Artery / Q000000981:diagnostic imaging*