A Classification of Unruptured Middle Cerebral Artery Bifurcation Aneurysms that can Help in Choice of Clipping Technique - Kumar, M V K; Karagiozov, K L; Chen, L; Imizu, S; Yoneda, M; Watabe, T; Kato, Y; Sano, H; Kanno, T (min - Minimally Invasive Neurosurgery, 2007)