β-Amyloid binding in elderly subjects with declining or stable episodic memory function measured with PET and [C]AZD2184. - Mattsson, Patrik; Forsberg, Anton; Persson, Jonas; Nyberg, Lars; Nilsson, Lars-Göran; Halldin, Christer; Farde, Lars (European Journal of Nuclear Medicine & Molecular Imaging, 2015)