Initial experience of coil embolization of unruptured aneurysm using Enterprise VRD, Takanori UCHIDA,Akio HYODO,Ryotaro SUZUKI,Kensho IWATATE,Kazuma KOWATA,Issei TAKANO,Tomoji TAKIGAWA,Yoshihiro TANAKA,Kensuke SUZUKI, JNET: Journal of Neuroendovascular Therapy, 5(3), 161-166, Feb. 2012