We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleA Personal Light-Treatment Device for Improving Sleep Quality in the Elderly: Dynamics of Nocturnal Melatonin Suppression at Two Exposure LevelsAuthorsFigueiro, Mariana; Bierman, Andrew; Bullough, John; Rea, MarkPublicationChronobiology International, 2009, Vol 26, Issue 4, p726ISSN0742-0528Publication typearticleDOI10.1080/07420520902927809