Knaak, Jan M.; Spetzler, Vinzent N.; Goldaracena, Nicolas; Boehnert, Markus U.; Bazerbachi, Fateh; Louis, Kristine S.; Adeyi, Oyedele A.; Minkovich, Leonid; Yip, Paul M.; Keshavjee, Shaf; Levy, Gary A.; Grant, David R.; Selzner, Nazia; Selzner, Markus