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Sleeplessness and Circadian Rhythm Disorder (cont.)

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National Sleep Foundation
1522 K Street, NW, Suite 500
Washington, DC 20005

American Academy of Sleep Medicine
One Westbrook Corporate Center, Suite 920
Westchester, IL 60154
(708) 492-0930

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Read What Your Physician is Reading on Medscape

Primary Insomnia »

Primary insomnia is sleeplessness that is not attributable to a medical, psychiatric, or environmental cause.

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