Disruption of cholinergic neurotransmission, within a cognitive challenge paradigm, is indicative of Aβ-related cognitive impairment in preclinical Alzheimer's disease after a 27-month delay interval. - Alber, Jessica; Maruff, Paul; Santos, Cláudia Y.; Ott, Brian R.; Salloway, Stephen P.; Yoo, Don C.; Noto, Richard B.; Thompson, Louisa I.; Goldfarb, Danielle; Arthur, Edmund; Song, Alex; Snyder, Peter J. (Alzheimer's Research & Therapy, 2020)