Development of a Biologically Active Guglielmi Detachable Coil for the Treatment of Cerebral Aneurysms. Part I: In Vitro Study ============================================================================================================================== * Yuichi Murayama * Yoshiaki Suzuki * Fernando ViƱuela * Makoto Kaibara * Kimi Kurotobi * Masaya Iwaki * Toshiaki Abe