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Chronobiology International
The Journal of Biological and Medical Rhythm Research
Volume 15, 1998 - Issue 1
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Original Article

Seasonal and Diurnal Patterns of Human Illumination Under Natural Conditions

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Pages 59-70 | Received 05 May 1997, Accepted 31 Jul 1997, Published online: 07 Jul 2009

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Ingvild West Saxvig, Ane Wilhelmsen-Langeland, Ståle Pallesen, Øystein Vedaa, Inger Hilde Nordhus & Bjørn Bjorvatn. (2014) A randomized controlled trial with bright light and melatonin for delayed sleep phase disorder: Effects on subjective and objective sleep. Chronobiology International 31:1, pages 72-86.
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Helen J. Burgess, Natasha Savic, Tracey Sletten, Gregory Roach, Saul S. Gilbert & Drew Dawson. (2003) The Relationship Between the Dim Light Melatonin Onset and Sleep on a Regular Schedule in Young Healthy Adults. Behavioral Sleep Medicine 1:2, pages 102-114.
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Niki Lindblom, Hannu Heiskala, Markus Kaski, Lea Leinonen & Maija-Liisa Laakso. (2002) Sleep fragmentation in mentally retarded people decreases with increasing daylength in spring. Chronobiology International 19:2, pages 441-459.
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