VEGF-mediated angiogenesis of human pheochromocytomas is associated to malignancy and inhibited by anti-VEGF antibodies in experimental tumors

Andreas Zielke, Martin Middeke, Sebastian Hoffmann, Mario Colombo-Benkmann, Peter Barth, Iyad Hassan, Annette Wunderlich, Lorenz C. Hofbauer, Quan Yang Duh, Bertil Hamberger, Fiemu Nwariaku, Andrea Frilling, W. Bradford Carter, Bradford Mitchell, Janice L. Pasieka