Circadian Rest-Activity Rhythms, Cognition, and Alzheimer Disease Dementia in Adults With Down Syndrome.

Chung PA, Fleming VL, Reid KJ, Plante DT, Hom CL, Ances BM, Handen BL, Christian BT, Head E, Mapstone M, Hartley SL, Zee PC; Alzheimer's Biomarkers Consortium-Down Syndrome (ABC-DS) Investigators.