Surgery on a saccular vertebral artery-posterior inferior cerebellar artery aneurysm via the transcondylar fossa (supracondylar transjugular tubercle) approach or the transcondylar approach: surgical results and indications for using two different lateral skull base approaches - Matsushima,T.; Matsukado,K.; Natori,Y.; Inamura,T.; Hitotsumatsu,T.; Fukui,M. (J Neurosurg, 2001)