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American Psychological Association: "Seasonal Affective Disorder Sufferers Have More Than Just Winter Blues."
Anxiety.org: "What you need to know about SSRIs."
Harvard Medical School Division of Sleep Medicine: "Sleep and Disease Risk."
Journal of Global Diabetes & Clinical Metabolism: "Seasonal Affective Disorder (SAD), Vitamin D Deficiency and
Mayo Clinic: “Seasonal Affective Disorder (SAD).”
National Institute of Mental Health: "Seasonal Affective Disorder."
The Nemours Foundation: "Seasonal Affective Disorder."
Psycom.net: "Summer Seasonal Affective Disorder (SAD): Yes, It's a Thing."
Reviewed by Smitha Bhandari, MD on December 20, 2018
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