Modeling the early stages of Alzheimer’s disease by administering intracerebroventricular injections of human native Aβ oligomers to rats oleh Eva Baerends, Katia Soud, Jonas Folke, Anna-Kathrine Pedersen, Simon Henmar, Lisa Konrad, Matthew D. Lycas, Yuki Mori, Bente Pakkenberg, David P. D. Woldbye, Oksana Dmytriyeva, Stanislava Pankratova