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What none of the abstracts that I've read addressed was the type of light used to read the non LE control devices or paper. In today's world of low energy light bulbs, CFL's by definition produce UV light which is then converted by a fluorescent coating into visible light. The problem is the fluorescent coating does not filter all of the short wavelengths and produces much more blue light than an incandescent bulb, or even some colors of LEDs.
Any time I see an incomplete study like this I immediately start looking for an agenda.
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