| Sleep Vols. 30 to 31; 2007 to 2008 |
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Vol. 31 2008 | v.31(1): 11–148 Jan 1, 2008 | v.31(2): 160–291 Feb 1, 2008 | v.31(3): 307–432 Mar 1, 2008 | v.31(4): 447–577 Apr 1, 2008 | v.31(5): 591–755 May 1, 2008 | v.31(6): 772–908 Jun 1, 2008 | v.31(7): 923–1051 Jul 1, 2008 | v.31(8): 1067–1188 Aug 1, 2008 | v.31(9): 1200–1316 Sep 1, 2008 | v.31(10): 1335–1456 Oct 1, 2008 | v.31(11): 1471–5141 Nov 1, 2008 | |
| Vol. 30 2007 | |
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