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Niggemyer KA, Begley A, Monk T, Buysse DJ.Niggemyer KA, et al.Sleep. 2004 Dec 15;27(8):1535-41. doi: 10.1093/sleep/27.8.1535.Sleep. 2004.PMID: 15683145Clinical Trial.
Buysse DJ, Cheng Y, Germain A, Moul DE, Franzen PL, Fletcher M, Monk TH.Buysse DJ, et al. Among authors: monk th.Sleep Med. 2010 Jan;11(1):56-64. doi: 10.1016/j.sleep.2009.02.010. Epub 2009 Dec 4.Sleep Med. 2010.PMID: 19962939Free PMC article.