References for “A SAD story: Seasonal affective disorder”

Published: January, 2008

Axelsson J et al, "Seasonal affective disorders: relevance to Icelandic and Icelandic-Canadian evidence to etiologic hypotheses," The Canadian Journal of Psychiatry (March 2002), Vol. 47, pp. 153–58.

Bhattacharjee Y, "Is Internal Timing Key to Mental Health," Science (Sept. 14 2007), pp 1488–1492.

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