Safety and efficacy of aneurysm treatment with WEB in the cumulative population of three prospective, multicenter series by Pierot, L, Moret, J, Barreau, X, Szikora, I, Herbreteau, D, Turjman, F, Holtmannspötter, M, Januel, A, Costalat, V, Fiehler, J, Klisch, J, Gauvrit, J, Weber, W, Desal, H, Velasco, S, Liebig, T, Stockx, L, Berkefeld, J, Molyneux, A, Byrne, J, Spelle, L