title: Persistent primitive first cervical intersegmental artery (proatlantal artery II) associated with subarachnoid hemorrhage of unknown origin.
authors.affiliation: Department of Neurosurgery, Showa University Fujigaoka Hospital, Japan. knakashima@med.showa-u.ac.jp
authors.forename: Koji
authors.initials: K
authors.lastname: Nakashima
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Itokawa
authors.forename: Atsunori
authors.initials: A
authors.lastname: Oishi
authors.forename: Yohichi
authors.initials: Y
authors.lastname: Imaizumi
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Izumiyama
mesh_terms: D000368:Aged; D015901:Angiography, Digital Subtraction; D002339:Carotid Arteries / Q000002:abnormalities / Q000473:pathology*; D002533:Cerebral Angiography; D002561:Cerebrovascular Disorders / Q000473:pathology*; D005260:Female; D006261:Headache / Q000209:etiology; D006801:Humans; D009460:Neurologic Examination; D013345:Subarachnoid Hemorrhage / Q000209:etiology / Q000473:pathology*; D014057:Tomography, X-Ray Computed; D014711:Vertebral Artery / Q000002:abnormalities / Q000473:pathology*