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Will this UVB lamp (narrowband 311 nm) start the synthesis of vitamin D in the skin? If yes, what is your recommendation regarding: – exposure time, – distance from the body in centimeters. http://www.lighting.philips.com/main/subsites/special_lighting/phototherapy/uvb_narrowband.wpd Thank you.

Asked by  kamiennik on October 30, 2014

  •  kamiennik on

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    Answered by  kamiennik on

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