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A comment on Evening use of light-emitting eReaders negatively affects sleep (2014). Parent comment

Re:Evening use of light-emitting eReaders negatively affects... by manicdee on Tuesday March 08, 2022 @02:11AM (#30597239)
The control group was allowed to use reading lamps and adjust lights and seating position to their liking.
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Re:Evening use of light-emitting eReaders negatively affects... by nautilius on Monday March 21, 2022 @07:07PM (#30760904)
Can you point me where that is described? All I find is "(ii) reading a printed book in the same very dim room light for ∼4 h before bedtime for five consecutive evenings", highlight mine.
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