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Birchler-Pedross A, Schröder CM, Münch M, Knoblauch V, Blatter K, Schnitzler-Sack C, Wirz-Justice A, Cajochen C.Birchler-Pedross A, et al.J Biol Rhythms. 2009 Jun;24(3):232-42. doi: 10.1177/0748730409335546.J Biol Rhythms. 2009.PMID: 19465700