Gradisar, Michael, Dohnt, Hayley, Gardner, Greg, Paine, Sarah, Starkey, Karina, Menne, Annemarie, Slater, Amy, Wright, Helen, Hudson, Jennifer L., Weaver, Edward, Trenowden, Sophie, "A randomized controlled trial of cognitive-behavior therapy plus bright light therapy for adolescent delayed sleep phase disorder", Sleep, 2011