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Can you catch a tan through a window? Here's how much vitamin D gets absorbed through glass – The US Sun | The US Sun
Vitamin D: does sunlight through glass provide this important vitamin?
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This is what happens
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Can you absorb vitamin D through a window? | BBC Science Focus Magazine
Can you absorb vitamin D through a window? | BBC Science Focus Magazine
Does Sunlight Through Glass Provide Vitamin D? - The New York Times
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