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Detailed US National Sleep Foundation recommended threshold values and... | Download Scientific Diagram
National Sleep Foundation Recommends Better Sleep Health to Help Immune Function and Response
National Sleep Foundation - Do you know #howmuchsleep you need? National Sleep Foundation updates recommendations for all ages. http://bit.ly/1K3elSi | Facebook
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Sleep Awareness Week - American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS)
How much sleep do you need? — Dr. Jade Wu
NATIONAL SLEEP FOUNDATION: THE NEW TABLES WITH HOURS OF SLEEP RECOMMENDED FOR BANDS OF AGE
National Sleep Foundation's sleep quality recommendations: first report - ScienceDirect