Sandra Ackermann, Hayriye Kocak, Barbara Hero, Volker Ehemann, Yvonne Kahlert, André Oberthuer, Frederik Roels, Jessica Theißen, Margarete Odenthal, Frank Berthold, Matthias Fischer
BMC Cancer. 2014; 14: 840. Published online 2014 Nov 18. doi: 10.1186/1471-2407-14-840