Design and first baseline data of the DZNE multicenter observational study on predementia Alzheimer’s disease (DELCODE) oleh Frank Jessen, Annika Spottke, Henning Boecker, Frederic Brosseron, Katharina Buerger, Cihan Catak, Klaus Fliessbach, Christiana Franke, Manuel Fuentes, Michael T. Heneka, Daniel Janowitz, Ingo Kilimann, Christoph Laske, Felix Menne, Peter Nestor, Oliver Peters, Josef Priller, Verena Pross, Alfredo Ramirez, Anja Schneider, Oliver Speck, Eike Jakob Spruth, Stefan Teipel, Ruth Vukovich, Christine Westerteicher, Jens Wiltfang, Steffen Wolfsgruber, Michael Wagner, Emrah Düzel