[O2–12–03]: DURATION OF ALZHEIMER's DISEASE IN THE PRECLINICAL, PRODROMAL AND DEMENTIA STAGE: A MULTI‐STATE MODEL ANALYSIS. (1st July 2017) - Vermunt, Lisa; Sikkes, Sietske A.M.; van den Hout, Ardo; Handels, Ron; Bos, Isabelle; van der Flier, Wiesje M.; Scheltens, Philip; Terrera, Graciela Muniz; Visser, Pieter Jelle