Prognostic value of von Willebrand factor levels in patients with metastatic melanoma treated by immune checkpoint inhibitors ============================================================================================================================= * Julia-Christina Stadler * Laura Keller * Christian Mess * Alexander T Bauer * Julian Koett * Glenn Geidel * Isabel Heidrich * Sabine Vidal-y-Sy * Antje Andreas * Carlotta Stramaglia * Mark Sementsov * Wiebcke Haberstroh * Benjamin Deitert * Inka Lilott Hoehne * Robin Reschke * Thomas Haalck * Klaus Pantel * Christoffer Gebhardt * Stefan W Schneider