Clinical evaluation of the effect of percutaneous transluminal angioplasty and intra-arterial papaverine infusion for the treatment of vasospasm following aneurysmal subarachnoid hemorrhage. - Katoh,H.; Shima,K.; Shimizu,A.; Takiguchi,H.; Miyazawa,T.; Umezawa,H.; Nawashiro,H.; Ishihara,S.; Kaji,T.; Makita,K.; Tsuchiya,K. (Neurol Res, 1999)