SOX2 amplification is a common event in squamous cell carcinomas of different organ sites

Sebastian Maier, Theresia Wilbertz, Martin Braun, Veit Scheble, Markus Reischl, Ralf Mikut, Roopika Menon, Pavel Nikolov, Karen Petersen, Christine Beschorner, Holger Moch, Christoph Kakies, Chris Protzel, Jürgen Bauer, Alex Soltermann, Falko Fend, Annette Staebler, Claudia Lengerke, Sven Perner^*