Obstructive sleep apnea severity affects amyloid burden in cognitively normal elderly. A longitudinal study - Sharma, R A; Varga, A W; Bubu, O M; Pirraglia, E; Kam, K; Parekh, A; Wohlleber, M; Miller, M D; Andrade, A; Lewis, C; Tweardy, S; Buj, M; Yau, P L; Sadda, R; Mosconi, L; Li, Y; Butler, T; Glodzik, L; Fieremans, E; Babb, J S; Blennow, K; Zetterberg, H; Lu, S E; Badia, S G; Romero, S; Rosenzweig, I; Gosselin, N; Jean-Louis, G; Rapoport, D M; de Leon, M J; Ayappa, I; Osorio, R S (Am J Respir Crit Care Med, 2018)