tailieunhanh - Vitamin D deficiency is associated with respiratory symptoms and airway wall thickening in smokers with and without COPD: A prospective cohort study

Previous studies have established a higher prevalence of vitamin D deficiency in patients with COPD, but the relationship between vitamin D levels and COPD exacerbations remains controversial. In addition, the effect of vitamin D levels on imaging characteristics remains mostly unexplored. |

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