1) Cay S, Cagirci G, Aydogdu S, Balbay Y, Sen N, Maden O, Demir AD, Erbay AR:Safety of clopidogrel in older patients:a nonrandomized, parallel-group, controlled, two-centre study. Drugs Aging 28:119-129, 2011
2) Higashida RT, Lahue BJ, Torbey MT, Hopkins LN, Leip E, Hanley DF:Treatment of unruptured intracranial aneurysms:a nationwide assessment of effectiveness. AJNR Am J Neuroradiol 28:146-151, 2007
3) Inagawa T:Trends in incidence and case fatality rates of aneurysmal subarachnoid hemorrhage in Izumo City, Japan, between 1980-1989 and 1990-1998. Stroke 32:1499-1507, 2001
4) Inoue T, Shimizu H, Fujimura M, Saito A, Tominaga T:Annual rupture risk of growing unruptured cerebral aneurysms detected by magnetic resonance angiography. J Neurosurg 117:20-25, 2012
5) Kashiwazaki D, Kuwayama N, Akioka N, Hayakawa Y, Kuroda S:The roles and issues of P2Y12 percent inhibition assessed by VerifyNow assay for patients undergoing Neurointervention:a prospective study. J Stroke Cerebrovasc Dis 23:1830-1836, 2014
6) Khosla A, Brinjikji W, Cloft H, Lanzino G, Kallmes DF:Age-related complications following endovascular treatment of unruptured intracranial aneurysms. AJNR Am J Neuroradiol 33:953-957, 2012
7) 厚生労働省 平成26年簡易生命表の概況 http://www.mhlw.go.jp/toukei/saikin/hw/life/life14/index.html
8) 内閣府 平成27年度版高齢社会白書 http://www8.cao.go.jp/kourei/whitepaper/w-2015/html/gaiyou/s1_1.html
9) Nishido H, Piotin M, Bartolini B, Pistocchi S, Redjem H, Blanc R:Analysis of complications and recurrences of aneurysm coiling with special emphasis on the stent-assisted technique. AJNR Am J Neuroradiol 35:339-344, 2014