The authors thank the German Association of General Practitioners (Deutscher Hausärzte Verband) for their support in the recruitment of GPs, the Institute for General Practice of the Charité Universitätsmedizin, Berlin, and the Deutsche Alzheimer Gesellschaft Berlin for valuable contributions during the development process. Further, we thank all project members for their commitment to the project. We extend our special appreciation to Prof. Dr. Adelheid Kuhlmey (Charité Universitätsmedizin, Berlin) and Prof. Dr. Sebastian Möller (Technische Universität Berlin).