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Severe Vitamin D Deficiency: A Prerequisite for Chronic Obstructive Pulmonary Disease Responsiveness to Vitamin D Supplementation?

Andrew Grey, MD; Mark Bolland, PhD; Ian Reid, MD

Annals of Internal Medicine 2012;156:904. doi:10.7326/0003-4819-156-12-201206190-00022

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Annals of Internal Medicine

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