Use of the AFX Stent Graft in Patients with Extremely Narrow Aortic Bifurcation: A Multicenter Retrospective Study oleh M. U. Wagenhäuser, N. Floros, E. Nikitina, J. Mulorz, K. M. Balzer, S. Goulas, M. Petrich, P. Dueppers, F. Simon, H. Schelzig, A. Oberhuber