%0 Journal Article %T Non-24-Hour Disorder in Blind Individuals Revisited: Variability and the Influence of Environmental Time Cues %A Emens, Jonathan S. %A Laurie, Amber L. %A Songer, Jeannie B. %A Lewy, Alfred J. %J SLEEP %V 36 %N 7 %P 1091-1100 %@ 0161-8105 %D 2013-07-01 %I Sleep Research Society %~ DeepDyve