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Old 12-23-2014, 08:01 AM   #14
Demingy
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Quote:
Originally Posted by mr ploppy View Post
Check the footnotes of the original "research": "Dr. Czeisler received royalties from McGraw Hill, Penguin Press/Houghton Mifflin Harcourt"

And the research data: 12 people over 5 days.
I'd be curious to see the difference in study design if these publishers decided to create their own lit e-reader or tablet.
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